the superstar with a .40 la is under powered for floats....i tried it.... took along time to get in air then it barely flew. what an experience. i have since then replaced the 40 la with a 65 4 stroke. and replaced the flat bottom airfoil with a fully symmetrical airfoil from a v-mar hotrod. heh heh its not a trainer anymore but it still sports the homemade floats and flies off the water. i alson added wing struts made from leftover pull-pull cable to help support the extra weight of the floats. my floats are made of pink insulation board (foam) and fiberglassed they weigh in at 4lbs 10 oz. complete with gear. length 36 in. step is at 18in. and 1/2 in. in front of cg. good luck & enjoy the experience.

the water rudder is very effective once up to speed (planed out).