Agreed. Reminds me of juggling, while learning I noticed that as long as I could see each ball for at least a split second on its upwards trajectory I could "te

Agreed. Reminds me of juggling, while learning I noticed that as long as I could see each ball for at least a split second on its upwards trajectory I could "tell" if it would be a good throw or not. In order to keep both hands/paths in my view I would stare basically straight forward and not look at the top of the arc and could do it at any height. Now I can do it much more with feel and the motion is muscle memory but the visual cues were my main teacher.