My fins - Atomic open heel splits, and Deep 6 Eddys. I watched a video of me going over a soft bottom. The split fins shot out a jet of water that raised a small silt cloud about 6 feet behind me every kick even though I was using the modified frog kick. I've also seen too many (probably new, probably still learning) divers in split fins dragging tips, and raising clouds. I'll use the splits in current, because I can maintain forward motion without cramping. For most other uses, the Eddys do me just fine. For me, the splits are simply harder to use well.