The catcher position is evolving these days..it's no longer being viewed as the slowest guy on the field..coaches have told me they are looking for quickness and athleticism in their recruiting..my 2019 catcher who is 6ft 170 runs a 6.7 60 in showcases and it stood out to a lot of coaches along with his ability to move like a cat behind the dish..helped a lot in his recruiting, so as far as what is the ideal height, I would say it's not a big factor as long as you are athletic.