I bought a used ready to fly with a .40 back in the day. Under powered for me especially flying in high winds. That plane is closer to a 60 sized trainer. An os 55AX would be my choice nowadays. I built a kit one and threw a ST .61 on it. Flew great. . Then I threw a ST .90 on it that I needed to break in. Perfect little hot rod.
i can’t remember if I burned it on the burn pile back in the day when I took a hiatus. I gotta get out and look in the back garage.
I have a Saito 90 Twin that I just rebuilt and the old LT would be perfect to break it in.