So I figured something out. For once! If any of you are thinking of doing a mini corsair, make the wing spars thinner. At 75% of original, the thickness of the foam plays a big part in the way the curvature forms. I have a very aggressive airfoil on the mini, at higher speeds it shoots STRAIGHT up, I've trimmed it at half throttle, then at 3/4 throttle, and found a happy medium. When I landed, my elevator was...not straight. At all. It had a good 7 degrees of nose down, just to keep it from climbing with speed. My thrust angle is extreme too. That I'm ok with. So long story short, I'm printing out more plans, and just doing the wing over again. I'm going to make the wood and foam spars quite a bit thinner than the already scaled down spars. I might combine some of NerdNics airfoil designs to build a very sleek "outer wing" ill leave the small inner wing and just make some be held on the leading and trailing edges. I dunno, maybe just the whole wing in a NerdNic style. I know it wasn't initially designed to be fast, but this little guy RIPS. A sleeker, thinner wing would definitely help me grab a few more MPH. I tried a 5.5x4.75 prop on 4s, and the wing is my limiting factor, I couldn't really pour on the coals. Other than that, it flies absolutely incredible a little above 1/2 throttle, tracks beautifully, and can slow down for a nice smooth soft landing.
See how thick the wing is. I've been thinking of an 80% fuselage, and a 75% wing assembly with thinner spars.