Fun plane. I fly the heck out of mine with an OS 46 FX in it. I set the CG back and the thing will flip like nothin else. What a kick.
Just an idea for you! I use a spring to hold the wings together instead of a rubber band. I am using a typewriter spring cause I have a drawer full, but you can go to the hardware store and get one that will work perfect. Make sure it has enough pull on it to hold the wing on, but not enough to pull the wing into the fuse hard. It doesn't take much, but you don't want it to come off. I use springs in all my slide on wings. I like it way better than wedges or bands. Have been doing it for as long as I can remember.