OK, I know all the tips for trying to hit the ball cleanly on my forehand. Use the non-dominant hand to track the ball, keep the head still, eyes on the ball with Federer vision technique etc. I've read about drills where you hit the ball without strings but have not tried that yet. I pretty much have to think "watch the ball" on every hit otherwise I'll mishit it. When I'm in the zone, I don't have to think about it at all. It just happens. What gives here? Has anybody gone through years of mishitting balls to finally correcting the problem?