Align's tail booms work great. There is a company that makes Kevlar belts. I tried some of them, they last a little longer, but they break too. Now I use the cheap belts, but I keep a close eye on them. I crashed both of my 250s today
, I think I fly those things too hotly because they are so fun to fly. Unlike my 450s which I fly very conservatively because they make a lot of noise when they crash.