Par4QC
All 6 shaft raw weights are 79-80 g on my old lab rescue triple beam scale which has been moved 3x and not cleaned or calibrated. Not to worry mate. ☺ I'll check over at Harbor Freight to see if they offer something less ancient within my budget . Doubtless old scale is off a bit. Trim & taper fit going slow but fine so far.
Checked trimmed off parts wt. 4.5 g for 2" tip = 4.5 g
And 5.5 g for butt. for trim of 7 iron . So numbers check ok and rechecked all lengths which match desired lengths as near as tape measure can be read.

I really appreciate you guys looking over my shoulder with this.

I checked wt on my Ping rapture v2 graphite r flex shaft vs dry wts of my parts to see if they're ball park &
Ping 5 iron 403g parts total 390g w/o grip tape
Ping 6 iron 408.5g parts 394g
Ping 7 iron 415.5 g parts 398g

    DC300
    I tend to over think stuff for sure. It definitely adds costs too. Every time I order even small parts the shipping is expensive and I am finding I need this or that after making an order.
    I like my MP57s a lot so I really hope the Sr flex Matrix reshaft makes them playable for me again. It's an interesting process too.

    I'd never really considered how each head was carefully weighted relative to shaft wt, length, and presumably tip swing velocity to try to achieve similar feel through out the set. I have new appreciation of club builders . If this doesn't work out well, I'm thinking of going doing a Pinhawk build where all the club's inertia related specs are the same. Makes good sense now more than ever.
    Great fun, eh what??

        Provisional That “fun” is why I stopped building clubs and sold most of my equipment. I couldn’t just build a set and enjoy it, oh no, I had to make everything “perfect”. I would spend an entire day laying out sets, then sell them for $65 here, ya know, back when Steve was offering more than $12 shipped.

        It was stupid, I now go with the slightly better than cut and glue approach because what I found is it never actually mattered on the course. Fitting is a science, but also an art, which means no matter how perfect they may be, there is still a good chance you painted with the wrong damn brush anyway. I still take the time to weigh things out, match sets up as well as possible, but I can knock a set out in 2 hours, when I have the tools laid out. The end results are just as good once you go hit them, those few grams and millimeters of trimming I would worry about don’t honestly translate to much at all. Essentially, I make sure things aren’t crazy off spec and compensate for variance as well as reasonably possible, then I go play golf, end of the day, that’s what we are trying to accomplish. If I ever feel I need another absolutely perfect set, I’ll pay someone to go through the hassle haha.

        I’m going Pinhawks with some slight modification for next season, but the beautiful part is, I’ll just pay Value Golf to do all the hard work and I’ll basically just glue them.

            DC300
            Darrin, you make an excellent point. I started a big brewhaha a few years back with my "does fitting really matter" thread. You make my point in that I still believe if I get a club reasonably in the ballpark, I will adapt to those specs and still play my best. The other big point is that you can drive yourself batshit crazy wondering if you got them just right......especially after a bad round. 😁
            Dibs on the Pinhawk irons and $12 shipped?

                Latest rumor
                Ping may be bringing out single length irons
                Named "Steve Won" for $12 shipped
                😆

                sdandrea1 I have to buy them first, then you can have dibs 😜. I’m probably going to look for slightly more than $12 shipped, but ya never know!

                In fairness, it’s not that fitting doesn’t matter, but after years of playing, if you are into the idea at all, you know the approximate formula to succeed. You might screw around to try something new, but in reality, clubs are built to standard specs, there’s only so much you can do to make them more for you. As long as you are in the right style club, with an appropriate shaft for your game at a comfortable length, I don’t think sweating the details down to the very last .1 of an ounce is worth it.

                  DC300 I once bought a set of Titleist heads off FGI. When I got them, I weighed them all out. EXACTLY 7 gr. diff from head-head, 3-PW. Did it a couple times to make sure I was seeing what I was seeing. I had bought a set of shaft pulls off Ebay and they had come in EXACTLY 3 gr. diff from shaft to shaft, 3-PW. I put on new grips, all weighing exactly the same! Most beautiful looking set of irons I ever assembled, and felt just as great, club to club.

                  Played them 1 round. Couldn't hit them. Sold them for over twice what I had in them. Buyer was nearly crying when they were delivered. Not me.

                  There's a moral there somewhere. I'm sure of it.

                      Par4QC

                      I have borrowed and/or rented clubs and played my best golf.........I guess it comes down to confidence and adaptability? Luck? Karma?

                        Status report
                        Cut the 6 Matrix shafts for 5-pw to match steel I pulled from my MP 57s added 0.25" to each, originally 5 iron was ~ 38" total built length.
                        Hand prepared with 5/8 " of taper area on ends. I've still got to finish tip prep on 9 & pw shafts. Ferrules id seems small too hard to slide on shaft even after removing paint where they will sit. I had to ream & sand and heat to get to get them applied. I even reordered with same results. I had same issue when I reshafed my G15 back in Jan. Must be a point I'm ignorant of here.???
                        Heads wt descending order 5 -->pw
                        252, 259, 266, 276, 285, 290 grams each. I checked calibration of my antique triple beam lab scale & it's about 0.2 grams low and sensitivity a bit lacking so I've rounded readings to 1 gram increments. All raw shafts 79-80 grams. 40" uncut
                        Cut shafts wts - lengths - inches same progression sequence
                        71g - 36.75"
                        70g - 36.25"
                        69g - 35.75"
                        68g - 35.25"
                        67g - 34.75"
                        64g - 34.25"
                        Calculated swing wts
                        In sequence with 63 gram Star grips
                        C6, C6, C7, C8, C9, C8
                        I'll finish tip prep tomorrow
                        Waiting on tip wts and final suggestions before epoxying them together.

                          sdandrea1
                          Coming soon hopefully 😄
                          My shop looks like hand grenade hit.
                          They'll look like Landon's TFlt tours but in grey, but I'll still think they look ok with Mizzy roadrunner on soles

                            Provisional there’s a lot of ways to go about balancing that set, but the 3 options I’d consider are taking them all to C9 or just add 3g to the 7, 2g to the 5,6,w to balance the head weights and call it close enough, or glue them as they are and stop thinking. Off the top of my head, I think option 2 gets it close enough you will never notice, but you have this much time invested, don’t let me sway you from doing it the way you want them.

                            On the ferrules, I have had some that are just too damn tight in the past, I take either sand paper or my hosel cleaning wire brush and run it through the inside of them enough to make a little dust, blow that out and then a q-tip dipped in acetone to melt it back to smooth for sliding purposes, repeat until it’s tight, but you can move it on the tip, grab the hair dryer and get it warm, move into place.

                                DC300
                                I'm vacillating on tip wt adjustment
                                For 5 , 6 irons particularly. There are some who suggest that a progression of swing weights is desirable, making lower lofted irons & longer shafts feel easier to swing , with less wt further from swing axis. My aging related strength distance loss seems very noticeable this year too with driver and 5, 6 irons. I'd just leave off tip wts based on that , but C6 may be too low and cause poor control. I see that with my driver swing as my heavier G15 vs Cleveland UL 270 , much more consistent with heavier club and mostly longer . I like your idea to add small adjustment to 5,6 irons and fgorgetsbout it😃

                                  Provisional

                                  You'll find out soon enough! 😉

                                  Typically, there are 10 cycles between flexes. A typical iron shaft in a woman’s flex would frequency at about 250 cpm; a senior flex, 260 cpm; a man’s regular flex, 270 cpm; a stiff flex, 280 cpm; and an extra stiff flex at 290 cpm.

                                    "The plans of mice and men gang aft aglay" or per "The Stones , You don't always get what you waaont"

                                    Perhaps this is why the shafts all feel stout, I wouldn’t worry too much, hit them and judge results.

                                    Shafts feel more S than Sr. to me after playing 9 anda small bucket at the range.
                                    But they did go my usual distances and gave straight shots. May be too stout. But...
                                    I'm going to add some lead tape to bring them all up to swing wt C9 see If that changes feeling they give me after I try them couple of more times. They respond better to a steeper stronger swing. I feel like wt reduction is helping increase club speed too.

                                      At c9 swing weight, they will feel much stouter. D2 should soften them up closer to A or R flex
                                      considering their 'stated' cpm. JMO.