RE: Sig SE on Floats
I think you will love the SE on floats. I have been flying mine on GP 40 size sport floats (heavy) for four seasons. The foam floats would be a better choice.
Another thing not mentioned is the flaperons. While it works well without any flap action, drooping the ailerons for takeoff and landing a few degrees (making the upper aileron surface a streamline shape compared to the upper wing surface) makes touch and goes an addictive sport. This requires a computer radio. On the Futaba T6XA I use the "AIRBRAKE" function to get the flaperons down with the flick of a switch. This also allows retriming the elevator for pattern speeds.
Have a ball, Paul[8D]