Yeah. A warbird this is not. Mine is looking like it's going to be a bit on the nose-heavy side but then again I haven't got any Monokote on yet. A 30cc might pull 1 oz/minute at wide open throttle but most folks don't fly like that continuously. As thick at that wing is I'm betting half to full throttle will net a 5 mph speed increase 8-)
I'm itching to get back going on mine. Got family visiting this weekend so I'm hoping to pour on the coals and get to covering starting Sunday afternoon.