Would it be something that comes out of you the more comfortable you get on your snowboard?
Perhaps. I've been skateboarding for a looong time. Last week I was out with some friends at a local park. Some of them were people I've been skating with for 15+ years. One of them has a very awkward style. Someone else said to me, "Ya know, I would have expected John's style to smooth out over the years. It never has." He was on-point. Some people do become more "comfortable" with time, others just never seem to. *shrugs*