power level

[thebigidiot]

does anyone know how to determine power level?

[mark rodgers]

Check out this thread:

http://tt.tennis-warehouse.com/showthread.php?t=32924

[b.]

I have seen something on ITF site - one nice machine that rotates racquet like a windmill, hitting the ball. Empirical measurement - I beleive it is much better until equation systems get lots of additional equations and become accurate.