Dufferman So, when I trim the new shafts, don't weigh the heads, just follow the normal trimming instructions for that specific iron? Then just butt trim them to matching over all length?
I always weigh the heads. I am guessing all of your heads are going to be 274 or 275g unless there is a weight stuck in the weight ports. I trimmed mine for an 8 iron head weight which is 275g. I went to the trim chart for the shafts I use and selected the tip trim for an 8 iron for my senior flex. This is not rocket science. These were designed to swing like an 8 iron but each club having a different loft.