Just talk to AW at 6:00 est he said the same thing with the adtion that the plane can be a ***** cat with the 3-3/4 cg but can rip it up with a 4-3/4.they said that pepole who have flown a low wing sport and do good by them selves shouyld have no prob. they also highly recommended a radio with duel rates and expo. i personally have flown an advance 40 with 0.s. 46fx with macs pipe. i can fly 5 feet off the deck inverted and hang on the prop for just a sec before it slumps. his comment was he had flown them and it flys easier. i plan to fly the edge with a os 1.08 fsr. its a 91 crank bored to 1.08 and it only weighs a couple onces more. whys everbody use in 4 strokes why not ligther more reliable and more power to weight? hope it helps