Actually that is a great idea unstrapping your back foot binding and stearing with your front foot. I discovered while getting off a lift and and slying down on a flat surface I notice that I can ride longer and more stable by controlling my heel and toe side. Pretty much your front foot do all the works. Before I was scared point the board downward and now I can do wide turns and not afraid of leaning downhill. I think once you pass that stage, you are pretty much have confident enough for turns.
i concur, i have issues with going up with t-bars which means I'm not steering particularly well on my front foot