Originally Posted by luvforty
the definition of 'penetration' is speed... you can't have a floaty slice that penetrates, even if it spins at 10000 rpm...because after the bounce all that 10000 rpm underspin becomes 50rpm topspin.
and to produce speed is simple, you need the hitting unit of arm/racket moving FORWARD at impact.
Maybe the better term is "aggravation". And, it may even require much more racket head speed than the 65mph of the inputs in order to generate same. My most aggravating slices actually still have backspin on them after the first bounce, and that bounce is extraordinarily low.
Weed at 156 newtons of tension(35lb force), 15 gauge, $16 per reel nylon.
Ace, XL TekZone wrist brace, no palm metal , golf rain glove for sweat