Just a heads-up that you can do the Standard Mode backpedal in Legacy Controls by pressing D S and A at the same time. The backpedal is lame but sometimes, especially in Gaze mechanics, I prefer not to be turned back around fully. Not many situations it's handy in, off the top of my head I do it only in Bardam's Mettle.

But yeah, if you like the Standard Mode backpedal but want to play Legacy, well here's your solution.