pjones
Contributor
Curious as to what others thought as to whats better? In terms of speed, ease of use, energy conservation, use, etc..
Fernie I tried to research the same thing when I was looking to buy fins (I'm assuming your asking because your looking to buy one or the other) I got nothing but mixed responses, wasted a bunch of my time and ended up renting each on separate dives to see what worked for ME. It doesn't matter what worked for me in the end because you will most undoubtedly have different results as I had. I found that the fins that I liked didn't work for my fiance and we rented multiple fins until we found a pair that worked for her. What you will find is that each and every person here will have different fin requirements because they are pushing different amounts of mass through the water and their legs are all different strengths. I suggest you hold off on buying for a bit and physically try multiple fins before you buy.
In my time of research I found rumors saying split fins can't frog kick well or do a back kick but I have seen divers preform these kicks without any difficulties. What I did find though is that each fin had different weights and stiffness to them. The fins that I picked were too stiff for my fiance and found that she had a hard time keeping up on the surface swims, as a result she ended up getting cramps in her legs. We tried a fin with a softer kick and both of those problems were solved. I wanted to progress towards tech diving and was worried that soft fins may start to buckle as I add more tanks and weight to my set up.
What I'm trying to cement into place here is that I feel every person has different needs and requirements regarding fins and that there is no ONE good fin. Try a few and see what you like.
Have Fun!