Thanks for everyones comments and posts. What I see my son doing is beginning his swing while still striding. The hands are coming forward before his foot hits the ground. It seems to disrupt his timing and takes away any chance of getting extension through the swing before the hips rotate. It is especially bad and pronounced against off speed pitches... I have heard this referred to as a "Dead Stop Hitter"...been trying to break him of this by having him hit off of a "high tee" and a couple of other drills like beginning with an "inward turn" during his stride but he doesn't like to listen to dad too much anymore. It's like pulling teeth to get him to try work through it...all I hear is "Dad- just pitch" when he's hitting BP!!!