Split fins: why not DIR?

[Chris]

Thanks Jason...
I can understand that, however I've successfully done a frog kick many times in my Twin Jets with no problems (possibly not as effectively, not sure though), however with the Twin Jets I also notice I can go along close to the bottom using a regular kick and not stir it up. I believe this is due to the fact that while using split fins you don't have to use as large of a kick, and the force is generated on the up stroke more than the down stroke, thus not causing as much turbulance in the water.

Maybe this would be something we can check out this summer?