As I am sitting here pondering "why only the left foot", I think I have discovered why. I started bowling when I was 6 years old and did so competitively, very competively until I was 22. Probably 5 days a week, I paid for a chunk of my college by bowling. I bowled a lot, I even made it to the hall of honor or something like that they call it. Right handers in bowling slide with the left foot. I think maybe it is the muscle memory of putting the left foot bend into a slide, I did this thousands of times. You are balanced in a left lunge, so maybe that is why the left is so natural for me. But it could just be that I am a freak.

Oh and to keep on the original question. To get the right foot out, I still turn heel out. So both heels out, left must be first or I hit the deck.

I told DH about this thread and his mind couldn't even process heels in to unclip. He was truly baffled trying to even picture it. So put him down as out.