ORIGINAL: Not24
Makes no difference what you start with. Floats can be mounted to any plane. You can put them on P-51 if you want. They need to mount in the same place, relative to the cg, regardless. Obviously, the cg needs to be checked and adjusted after they are mounted, but that holds true for all float planes.
Where did I say you can't mount floats on any plane?[&:]
I didn't say you cant mount floats on an Ultrastick. I'm saying that you are more likely to have to have to move the gear or add weight to make them work. And yes you can add weights to P51....it probably won't fly worth a crap so it would make no sense to add them. If you trying to find the right plane for floats and adding them is going to make the plane not fly well or be impractical compared to another logical choice than we call that "normally" a "bad" choice. I'm saying that the floats added to the SuperStunts will be easily and lead to a better performance plane.
Have you flown both? No... Enough said.