Well, first would probably be an old, tired Midwest Giant Ugly Stick I use for engine and radio test (had everything from a ST 2000 to a Centermark twin on the front end). After it's broken in and I'm comfortable with it, I've got a Pica 1/5 Mustang ('bout half done) or an IMP ME-109 (NIB), or I might put it on a big scratch built Chipmunk I have (currently flying with a ST 3000 on ignition). Had slated both the kits for big Tigres, but with the shift to China for the ST factory, parts are getting too hard to get and I'm slowly losing my love for Tigers.