That's exactly what the spear chucker said RIGHT before the guy with no spear shot him with a Bang stick!
K, next time I'm down let's see if I can find someone's Jets to try. I tried on a pair of something, but I can't remember if they were Rockets, Jets, Turtles, or maybe someone made them at home in a *Thing Maker*! What I do remember is they were NOT comfortable.
The BioFins are comfortable, and in general I don't think anyone is going to get me to switch. But I agree you can not back up in them easily (I've tried). Then again watching you guys do fin drills, NO ONE seems to back up easily!
For most of my diving goals, I don't feel the need to backup. However I have played around with the idea of Fundies just because I hear it's such a good class even if I have zero desire to do deco or Tech diving for the most part.