Ok, so I have completed the Ski Instructor level 1 certificate, and close to my level 2... I've been told my stance is pretty good, I bend my ankles, knees and hips and am not riding back seat... I also weight 190 but I have a big upper body, I also have shorter legs very small feat on average, so much so I have to wear a boot size of 24.5 so that may be putting more stress on my legs... I do have custom insoles as well.
I also ride at Revelstoke and primary ride black runs, trees, powder and bumps in ever changing conditions (powder, ice, slop, crud, soft)... On groomer days I don't get too much leg soreness but when I am off piste in more technical and steep terrain with bumps, steeps and tight trees I find my self having to stop pretty often to rest my quads regardless of snow conditions; meanwhile I see a lot of hard chargers that I couldn't even dream to keep up with otherwise I'd lose control or injure myself
If it's not my default stance could my boots have too much forward lean? Should I try taking the block out from behind my calf that forces my lean (shins and ankles) forward? Could the fact that I'm very upper body heavy be the problem? Having super small feet?