In addition to the previous points in favor of open heeled/adj fins + boots over full-foot fins, one that I haven't seen mentioned yet is the ability to carry spares and easily change out a strap when one breaks. All gear wears, and one day as you start to put your fins on your strap will break (or your heel pocket on a full-foot will split). What to do now? If you just broke a fin strap, then all you have to do is open up your SAD kit and replace the strap. If you split a heel pocket, you'll need a replacement fin. If you carry a spare fin, then no problem - but how many actually do?
All IMNSHO of course...
Daz
All IMNSHO of course...
Daz