I had the 120 powered with an ASP 1.08. I had mounted the servos in the tail and ended up needing nose weight to balance it. Go figure. Oh well, it was also cloth covered and painted, so I'm sure that didn't help either.

Anyways, I agree with Ed on the dihedral - it doesn't need it. It also wouldn't hurt to cut a rib from each wing. Mine was built stock except for reduced dihedral and it flew pretty much like a 4 Star - (that s a compliment as far as I'm concerned, btw!) except I found the roll rate someone disappointing which I'm sure would have been greatly improved with a shorter wingspan. I do dissagree with the wire gear and skid tho. An appropriate sized Sullivan tailwheel assembly is a must for the back end and if you can get ahold of a dural landing gear blank for a Fourstar 120 go for it. I found the wire gear okay flying off pavement but very draggy in grass.