My son and I chose the 4 Star 60 as our second plane with the thoughts that the larger plane would be a better choice because of its size. We also chose it because it it 's plans build with Flaperons. The 40 does not provide for flaperons you would have to do it on its own. We are going to use a Magnum 91 (it balanced almost perfectly) for our power plant. If the weather holds our maiden voyage is this Saturday. The pilot is both nervous and anxious and so is his dad.