I've used Dakines on a Hobie 16 in the past (early to mid-90s). I put them on the side rail (didn't want to add holes in the hull). Never had an issue with getting a bootied-foot into or out of them, they were adjustable as I recall. I never capsized or pitchpoled while using them, so I can't say whether it would have been a problem.

Having said that, almost none of the top H16 guys use (any brand of) straps. Most call them "ankle breakers."

I never put them on any of my new boats (owned three starting in 1997). I can think of lots of capsizes that would have been avoided with them, however...

Mike