Matt, Do you mean that Joe and Mark designed a combat bird that can't fly well in C class? I've seen a couple Predators with 46fx's on them that seem to fly very well, but they don't turn as tightly because of their speed and weight. And I have a Gremlin with a 46fx and a 10x7 that handles the same way, only it's not nearly as durable as a TufFlight plane. I agree with you that a 46fx is over-kill by a lot, but I have a hard time believing a Panther couldn't be properly ballanced with one.
Stdun, When you talked to Joe and or Mark on the phone, what did they say about a 46fx on a Panther?