I really want to get the HOG paddle fins since you get the spring and the whole enchilada for $79 bucks.
That beats Scubapro's price by half...
But a pair of SP Jets with springs are cheaper than what you paid for the Atomics PLUS the pair of HOGs.
Remember Ray's 1st Axiom of Diving: You'll spend a lot less money in the long run if you buy the right gear in the first place.
But you could so the OMS slipstreams mentioned above as well. They are several pounds lighter than a pair of Jets though, so watch for floaty feet in the drysuit.
PS: You continue to make artificial distinctions between warm water and cold water. Once you get the frog-kick down you'll use it regardless of water temperature.