Bought some WilsonHDHardcourts the other day. First stray from Dunlop or Penns in over 10 years. I wanted to see how fast my serves would go, and how high they'd bounce.
Well, 2 of the 3 were very Penn like. Not bad. ONE of the 3 is pure Wilson, the knapp compressed flat, the ball getting light and hard, and used by almost everyone for first serves...everyone who noticed.
I'd say the ONE bounced at least a foot higher than the other 2, on both first and second serves.
Great quality control.