go talk to andre agassi. his dad invented a machine that would spit a ludicrous number of balls at his kids, at high speed. little andre, at like 6 years old, would have to hit the balls as soon as they bounced off the ground or they'd go over his reach. and that is why he was the greatest off-the-rise returner ever.
if you're looking for a book to read, his autobiography is great.
