serious question but why does you boot have to flex to stay in balance? If the meduim flex boot bottoms out and then it can transfer power, why not just ski a stiff flexxing boot that has the aligment you moved into ?
Also should you ski forward all the time or is there for and aft movement in your skiing? the general consensus among high end instructor,technical skier and racers is that we move for and aft though our turn to remain in better balance.
https://vimeo.com/146556883
https://www.youtube.com/watch?v=6sdEFYz7i2g
if your forward all the time, you are fucking up the way you turn. The skis take a longer path than our body and need to get away from us to actually be able to ski dynamically.