@RJ_ I would recommend you add this to your library. The Inner Glide: The Tao of Skiing, Snowboarding, and Skwalling. There is a lot of good technique info in there that you can transfer around into most snow gliding activities.
I would try to max the stance width as much as you can and then take a run and see if it feels any different. On my Easy Jungle I am on the widest insert pack AND the widest allowable binding width and I still wish I had some more room. Everyone does it their own way, so you do you.