Sasquatch, It sounds like you're not having any trouble wearing Tusas over drysuit booties? What size is your boot size? My LDS thought Zooms wouldn't have a big enough pocket for a size 12 boot...
tiburon, I can frog kick fine in my Atomics. A little more work than a traditional Jet fin due to their length but the original model Atomic Split is fairly stiff almost like a blade fin. The modified ( bent knee ala bicycle kick) works great.
HappyDvrGirl, Atomics are negative but they sink slowly! I had one come off right after a giant stride off a boat as the deck guy hadn't gotten the strap buckle snapped quite right. I had time to sense that something didn't feel right, turn around and scan for the fin in bad viz and it was still very slowly sinking at chest level and I had (much to my relief) no trouble retrieving it. They are no where near as negative as a rubber fin(Jets, Bios, etc.) I still prefer to use ankle weights with mine but did do one dive without. Yellow stripes sure helped to retrieve that fin.