One of the words of advice heard repeatedly is to not grip the neck too tightly. My thumb ends up hurting after a couple of minutes which indicates to me that I'm gripping it too tightly and I've tried to consciously ease the pressure on my thumb, but I keep getting to a place where it hurts. It's only been a week and a half so my question is, is it like the thing with calluses where trying to find that proper pressure is just a matter of time and practice or is it something that needs to be paid attention to constantly?