I fly (flew) mine with an OS 50SX, and don't feel that it's overpowered.

Got my ailerons reversed after a radio repair (oops!), so I am building a new one with a number of mods. I clipped the wings 1 bay, sheeted the wing, added retracts, skinning the fuse, added shaped wingtips, replaced the rudder with one based on the Venture and making a cowl. Still may make other mods, we'll see.

Scott