I set my razzle up with a Saito 72, 4.75 cg, 13X4W APC prop, weight at 6lbs. 8oz., using 100% rates and it does everything I can ask. It floats extremely well. It hovers but not alot left to pull out very fast. It does pull out though. I added two washers for some right thrust. One washer was not enough. I got a 14X4W prop today and will fly it soon as I can. I put lower flying wires to strenghten the horizonal stabilizer. It's my favorite of 11 planes at this point despite the percieved shortcomings of the product I read in this forum.