So i added a leather grip from a synthetic and added 2 overgrips (wilson pro)... i was doing to put about 6-10 grams in the head 3 and 9 and was going to add some weight to the handle to return to original balance, but i think the overgrip and the leather grip addition has done that for me. I don't know the exact weight difference, but i think it should be close to stock... btw. originial grip. bab. synthetic grip...leather grip is wilson before i use to use just 1 overgrip over the synthetic, but i tried 2 over the leather and the grip felt better (in terms of size).