The CMP kits can be a problem since they often use bad glue that dries and gets too brittle. Still, they are good planes for the $ and I have had good times flying them. My 3 Cee Bees Nieuport 17 has been my biggest problem as the wheel rubber keeps coming off the rims. I have tried everything to keep them on, epoxy, different glues even pins & screws. I finally ended up buying some new Dubro wheels after they came off again causing some minor damage on landing. What a pain!