Hi! I had a ResiPro Thin on my HEAD Speed IG 18x20 that felt great and with a Wilson Pro OG on top weighed to my fave exact specs .. 11.9oz. I realized however that indeed the grip was a little too small and went back to the original Hydrosorb that came stock with no overgrip. Weighed exactly at 11.9 but I cannot put an overgrip on it without adding a little weight. I am very sensitive to any weight change. 11.9 is most I wanna go to maintain the balance I like (head light/SW). Is there any synthetic grip out there that weighs the sames as ResiPro Thin (12g-14g I believe) but NOT as thin, maybe like the Hydosorb but a little lighter in weight? Any help is greatly appreciated! Thx!