Personal experience tells me I like the performance of heavier grips, but I like heavier clubs overall and also prefer counter balanced shafts. Now the funny part is, I get better performance from clubs laid out as such, but prefer the feel of a bit head heavier club. I built a couple sets of TLT and Moi matched sets, didn’t see a performance gain, just went back to build to a feel and match from there, generally around swing weight, loosely based on balance point and all about, do I like it? End of the day, I’m not good enough to worry about it.