I have a 40 size with a Saito 72. This is my favourite plane as I can do anything I want with her and she responds obediently. She is easy to fly and easy to land.

I agree about the 60 size being difficult to distinguish in the air however the 40 was the same until we cut square 'Peel & Stick" Ultracote and created a checkered bottom....no problem now. 72 is a must for the 40 and a friend is using a ST 90 on his 60 size.

Either size is fun however the 1.20 is not recommended as a fun flyer and I have heard lots of complaints about it - too slow, not as responsive etc. If I wreck my 40 then I'm getting a 60 size.

Happy Flying
Flying Scotsman