RE: choosing second plane
mine was the Great Planes Super sportster 60 and I have liked that plane every sense. When it got a little boring with the Enya .60 on it , I switched it to the Enya .80 with a tuned pipe. Man does that plane go.
Still have one in the barn waiting for better weather.
I with with the 60 over the 40 as the wing loading was better.
sticks