Man I'm with you FrogT. I don't get it either. I have never seen a plane that was built correctly not fly well with the rated motor. Now of course, if you have a sleak pattern ship or a 3D plane, then knock yourself out. There, scale speed is meaningless.

I attended another clubs fun fly and there was this nice Tiger Moth with WAY too much engine. Hovering a Tiger Moth, flying it inverted and doing a screaming flyby just plain looked dumb.

Yeah, yeah, I know. I hear all the time that the larger engine is there for balance and "reserve power if you get into trouble." I have NEVER seen an over powered plane run at a lower throttle setting just to keep the extra power in reserve. And what "trouble?" Extra umph to get that plane over in that outside loop? Power out of a stall five feet over the deck?

Sure, it's a free country and everyone is free to put whatever the want in their plane but I just don't see the rationale.