Had a better one today, not as much wind so wasn't intimidated so went for too many Gs and spun the fin out, twisted my foot in the strap, but it's feeling ok now. Trouble is these days, I can't tell how much damage I've done, sometimes it doesn't feel too bad but by the time I get home, it's all seized up, others it just fades away and I'm right in a few hours. Fortunately this time it was the later.