The Hi-Tech grip has an extra firm backing and smooth gripping surface to provide a classic, high traction feel for maximum control. The Gamma Hi-Tech replacement offers a tacky feel for those who prefer not to use an overgrip. Made extra thin that keeps the handle bevels pronounced, increasing feedback and feel. You will not get the sponge-like feel with this grip, that's why it is typically loved by high performance players. A lovely alternative for players who find leather grips too heavy and want a grip with similar feel at a lighter weight.