RPM added by this grip.
We have a NEW king in town. Tournagrip Mega TAc. Tackiest. and it does get wet and slippery little bit if your hand is big time sweater. but if you just wipe off during changeover with super absorbent towel, it works out ok.
in Winter time, this stuff is great. It will add about 50 revolutions to your topspin
Babolat Pure drive 2012, 55 lbs, Kirschbaum Proline X / X-1 biphase. Nalbandian backhand and Nadal forehand.