I have a OS 52 on my LT40 and it has plenty of power. There were no balance issues. All the radio/battery stuff is in the regular positions. in fact I used to have a Tower 46 in the plane and the OS 52 is bolted into the same holes and the same throttle tube line is used. I've had the plane close to 10 years andit has well over 100 flights on it.

I think that you will never regret having bought a Saito 62 for this plane and future uses. It seems to have as much ower as the OS 70 and weighs a lot less. After all I have 22 Saito engines. I also have four OS 52 four strokes.