I shortened the wing on my Uproar by cutting off the last rib bay on each wing. Big mistake!! I thought it would go faster. It doesn't. Now it fly's at an upward angle of attack. It won't loop well unless it's into the wind or coming out of a dive. Otherwise, it does a funny flip at the top. Rolls are no faster on high rates, they're even slower on low rates. It lands pretty fast without flaps. The bright side to my experiment is that I have gotten a lot of experience with flaps. It will do nice fly-bys with the flaps down.