RE: LT-40 vs. Kadet mk II
Modify the wing on the LT down to 1 " Dihedral, and make it a tail dragger. Really livens the plane up without compromising the excellent handling. Mine is a bolt down so the wing goes on square every time and stays put. With an OS 52 4S on it, it flies great. Inside loops, outside loops, upside down, does them all pretty good. With the low dihedral when I bank, it maintains the bank until I level it off, much like my SIG 4*120 does. If I want to relax or need to take my eyes off the plane for a moment I can set the wing on a bank, and kick in some rudder, and it will circle round and round until I release it.
It is my fun plane for now. The 4* may take its place once the engine is broke in and I get stick time on it, but the LT40 is just a blast to fly.