Man, that is the coolest design I have seen for a short bow! The shelves at the limb butts on the back of the bow set it apart from all others. The overlay work is exceptional! No doubt it is an original. I really love that design. looks like string angles are pretty low at full draw. bet its very smooth. If you like the FD curve and performance I wouldn't change a thing. If you don't, the tweaks mentioned here would be worth trying. If you do decide to tinker with the design the tips are plenty stiff to add more thickness taper and a power lam and still not have to worry about whip tiller.
Bonner