Well mine is flying with a Saito 72 with a 13x6 apc prop and a 2and1/2 in spinner, used the stock wheels and it weighed in right around 4 and 1/2 pounds. Servos I'm using are JR 4131 for the ailerons and 537 on the tail and the throttle. Flies absolutely great, and yes it doesn't want to land, mine touched the runway 3 times and still lifted back up. I'm running flaperons and spoilerons. and triple rates. It is truely a fun flying airplane.[8D]Oh almost forgot plane balanced at 4and a 1/2 inches from the leading edge.