I feel I'm getting like +5% FPS with the new added grip tape. 
 
Does feel pretty good. I'm using .5mm but some say the 1mm feels softer and squishier which some folks may like... I kind of wish I got that. This .5mm adds grip, but there isn't a "cushy" feeling to it. But I was worried it would change the feeling of the mouse.

Bought marrucci brand bat grip, alot of folks use lizard skin, but was worried about residue if I removed.