Pro Penn balls are great, but you can't buy em online. The new Pro Penn Marathon balls are similar, but at $79 a case, forget it. Same with the hardcourt Babolat balls at $75 a case. Penn ATP Tour balls are so-so. The Wilson US Open balls are good, but $80 a case? I'm sticking with Dunlop Grand Prix's, at $57 a case, from TW of course.
Last edited by GS; 02-05-2012 at 07:23 AM.