flyfisherjoe...note I said they were not carrying F/F.

Norm, interesting photo...assuming they were going on the same mission seems odd they each have a different style.

For me...I'm not sure I can discern a difference in most quality fins regardless of style...that is in re: to speed....Guess that's just me.

Over the years I've had all kinds...the straight style ...ambifins ...ones made out of graphite ....cheap ones and expensive ones...etc. I've had several generations of force fins...original style to the present ones...I was always looking for ones that fit over my size 13 wading boots...the current ones do that.

There was a thread long ago that discussed this and one of the discussants was on olympic swimmwer, as I recall, and she had a lot to offer about what certain style of fin was best in what type of situation and what muscles were involved in the stroke.