Good luck MK baseball dad. Sounds to me like your son is doing what he needs to do. I just wanted to add something about HF as we were there too.
I can't imagine a HC talking to a parent the whole game at HF HRC. There were 4 games going on at the same time in a clover leaf pattern, so some coaches did rotate around, but most were either in the dugout or on the field actually coaching, and the majority of the others were behind a screen watching one of the four games. I'm not doubting you -- just making two points: This may indicate very serious interest in your son but secondly you should be careful to make sure your son is the one having these discussions.