People bashing Jack for nothing, unbelievable.
I think He was working on his strikes only, nothing else, that is exactly why you get a ball machine to work on it, over and over and over again, once He has it down, watches the ball around the string bed, doesn't move his head after hitting the ball He will move on.
But to be fair I don't see JackB1 talking that He is a big thing, like a few others do, I'd like to see some other guy here in this thread post a video of how good he is, after so much rant and anger in most of his posts.
Keep it up Jack, to be honest I think your mechanics are as good or better than most play testers of TW, excluding Andy/ Brittany/ Sihoban.
2X YY 97T 310 with YY PTSPIN 49/45. (Ezones Xi put away for now) 1x Yonex Ezone Xi Team Plus (Poly HS 54/50) for doubles---Yonex SHT 308!