Nice plane collection Mike. You've been very busy! I'm not quite sure what you're looking for in performance. More acrobatic? More speed? I admit to building heavy myself, but my modified Somethin" Extra was noticably faster than other SSEs I've seen, which I attribute to the FG cowl. The plane only had an ST .45 on it, so not too overpowered and a blast to fly. Mods included a fuel hatch, enlarged rudder and the cowl. Sadly, lost to an over rotated aileron linkage. May she rest in peace[]