View Single Post
Old 10-03-2012, 08:02 AM   #27
LuckyR
Legend
 
LuckyR's Avatar
 
Join Date: Jun 2006
Location: The Great NW
Posts: 6,207
Default

Quote:
Originally Posted by tank_job View Post
very very sketch.

On the other hand, I have a feeling you would have to reverse the downwards momentum of the incoming ball when brushing upwards on it, making it harder to hit topspin.
Actually not "sketch" at all. It is well known that a rapidly dropping toss imparts topspin to a "flat" serve and thus increases it's consistancy, pehaps by about 10%.

http://www.amazon.com/Physics-Techno.../dp/0972275908

H Brody is the acknowledged expert in this area.
LuckyR is offline   Reply With Quote