Hatul
Contributor
I have both the Power Planas and and F1s and the Power Planas are noticeably lighter. I suspect the F1s are slightly more negatively buoyant because both are made of the same material. The Power Planas are good fins but I can't use them shore diving, because the bungee strap is not secure enough to the fin in surf and tends to come off when donning or doffing. I like fins where the strap is positively secured to the fin not held with friction to a plastic post.Might try some Power Planas. My wife sometimes dives them. I accidentally grabbed them for a rec boat dive and I felt like I spent an hour walking up steps. When I handed them up at the ladder, the DM almost dropped them and said, "Man, those are some fins." Geez they are heavy.