I am running a ZDZ 40RVL in a 27.5% Miles Reed Extra 260, 80"span, 15lbs dry and it is great for basic and intermediate Imac type stuff. The control surfaces are more to scale so 3D is not a strong point although it will hover and torque roll. Lomcevacs are awesome. Basically the little ZDZ flys the plane the way it was designed and does it well. Not sure about the Hostetler design though. A nice thing about the ZDZ is its compact size. Less cowl butcherage! Prop clearance might prove to be an issue with a larger mill.