Hard to say exactly but not much I suspect. I altered my Long Shot since it had a broken frame that needed repairing. I have always wanted a Baidarka but I have to many boats now. So I redesigned a few frames on each end to get the shape I wanted. I didn't even look at the Firefly design, just worked from what I had.

But the Firefly design was based off the Long Shot hull. So I suspect there are very similar with minimal differences. This one should have a bit more rocker in bow. I always though the Firefly would benefit from some more rocker.