I am surprised at this a bit. Have a set of ping g15s steel r flex. A set of Cleveland ta5s steel r flex. My late mothers set of Cleveland ta5s graphite senior flex. G15s currently have golf pride align plus 4s on them. They feel kinda heavy that way. My steel shafts ta5s have black and white karma velvets. My moms ta5s currently had no grips. So I pulled out the compressor and pulled 2 grips from each and swapped a few just to see. The align plus 4s on my moms graphites made them feel much better. Remember they made my pings feel heavy and awkward. I put a golf pride std 360 pull on the ping g15 steel and it felt lighter possibly better not sure yet. Also put one of the karmas on the ping not sure yet either. For me I guess I’m surprised that a grip can change the feeling and perceived weight of a club that much? Anyone else notice drastic feeling change from a grip swap? Maybe I’m a just a little weird lol
Grips make clubs feel differently?
bigshank Anyone else notice drastic feeling change from a grip swap?
Material composition and thickness of the material, makes sense to me.
Never purposefully compared one type of grip to another. Not too adventurous with grips.
bigshank I don't know about drastic, but I remember taking some grips off a set of irons and putting on some Winns and the set felt off to me. I realized the Winns were about 15g lighter so that may have been it as I like heavier clubs.
The next time I used those 40g Winns I added some back weights to try to balance things out......that became a rabbit hole of experimentation of course 
bigshank Anyone else notice drastic feeling change from a grip swap?
While it is OK to test a new grip, just do it by buying only 1.
Some grips can weigh as much as 10 gr. more than a different brand, that looks similar.
I use the same grips on most all my clubs,(esp. the weight) and have used them for several years. Always the same feel and weight (+/- 1-2g.). And same size i.d.
You are finding out...grips can make a world of difference in any club.
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They make a huge difference. Recently bought some Karma grips and some Star grips. Both were midsize. The Star grips were a little softer and I was able to make a confident grip on the club. The Karma grips never felt like my left pinky had a good hold and I constantly found myself regripping in my practice swing and at the top of my swing. Needless to say I think I will be using the Star Sidewinder for a while now. So yeah, agree, grips can make a huge difference. An ultralight grip and give you a whole additional swing weight as well which may give you a better sensation of the head or make it feel too heavy for some. For me, heavier head = better sense of club's geometry but everyone is unique.
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There was nothing wrong with the Karma's except the butt end was a little harder and that extra mm had me gripping and regripping.I didn't feel like my fingers were sinking in and getting a good hold. Some people like them to be firmer. Guess that is not me.
In fact, the ones I bought looked awesome I think they were the Superlights and I really liked the texture of them. Just the butt end was really hard. Going to try and sell them to a friend who wants to regrip and recoup my money.
Given that Star grips last forever, I think I might just go with what works for now.
I think the grip can make a pretty big difference, and it is not just because of weight. Some grips are softer, some have a different texture, etc.
I love CP4 Pros, and sincemi switched from midsize to jumbos I am never going back. The jumbo grips just feel right to me.
Jelopster
Using red Star Grips. So great minds think alike. Although I like those ferrules a lot.
I use the Tacki Mac unified grips on my clubs, no taper, big diameter and heavy, makes a huge difference in the way they feel.
For those in this thread that note that grip weight change does not make the "feel" of the club different this verifies that swing weight heft match also does not make much difference. In MoI heft matching grip weight makes no difference. You are attached to the club at the end of the club not 14" down the shaft from the end of the club. 
scotts33 If a person has been using their clubs for a couple years, they are used to 'that' feel. You cannot make me believe, if a person changes the grips to something heavier/lighter/thicker/thinner, they are still going to be able to use those clubs as they were. Esp. if they, all of the sudden, jump on this 'craze/kick' of jumbo grips. or oversize. Given they are 10g. heavier (in most cases). Or going from a 52 g. down to a 42g.. Not going to 'play' the same.
The difference to me is the installation size ,grips are supposed to be 600 core but some grips( like Karma) seem to be really thin. I really like 580 grips but not many choices.
scotts33 You just shot all those selling back weighting devices in the ass....LOL
accufitgolf You just shot all those selling back weighting devices in the ass....LOL
You got it John! Heft match is a tricky thing. Wonder why the MAJORITY of golfers that like light graphite shafts in metal woods dislike them in wedges? Hmmmm. 
sdandrea1 Really? Is there a poll that supports that? I don't find it to be true.
The majority of the golfers that I fit find anything under 100g in shaft weight yields less feel/heft. You could use lighter shafts and kick up head weight. Touch finesse shots less than full for the majority heavier shaft weight improves performance on wedges. It's why all major manufacturers kick up heft match on wedges. Heavier shafts help that for the majority.
If you like soft tip wedges then use a 100g steel and don't tip that's basically what a Wishon Hi-Flight wedge shaft was.