I was just curious, I am a beginner and really fight hard to keep shoulders aligned with board. I currently ride +15, -6. I learned to ride from snowwolf videos on this site. I have to put my right arm behind my back to keep me from wanting to counter rotate. I didnt know if I changed my angle forward if I would not have to worry about my shoulders. I ride pretty well for an old guy so I wont mess with it.