Working on this baby to get some more area then the delta xt50 at the same length, as my spot tends to get really shallow when we get highwind from the northwest, it's slightly asymmetric due to being a Lessasher design with concaves that has been shortened from 40 cm to 15cm. Let me know what you think. And I know pretty is different??

What we think doesn't matter, it's how it works that counts!

I've learned from Fangy's fins, that what you think will be crap, is sometimes very good

My feeling is it will work OK in shallow water where weed or the bottom will act as an end stop. But in deeper water that huge tip will cause a big vortex slowing you down. Also it's hard to see from the pic, but it looks like you've thinned the tip out. I don't normally do this, as it destroys the foil shape there, Creating a much finer leading edge, this could lead to the tip stalling or it may reduce the vortex. I've no idea really, tell has it works when you try it.

I think you'll find adding a fangy fillet will improve it