OMG
an OS 10 on a Gentle Lady? You would have to be nuts LOL

One night a friend and I decided my Gentle Lady needed to attend the float fly. So we whipped out a balsa pod with a 2 ounce tank and throttle servo for my OS 10 FP and bent up some light brazing rod to tape some quickly hand sawn white foam floats to covered with 2" clear tape. The whole works rubber banded on to the poor old Lady. Flew just fine with a hand toss (not enough power to take off from water) and landed just fine.

If its fun DO IT