I cracked my twist in the middle and glued it back together then but some strips of fiberglass cloth with CA. Then cracked it in half again right behind that spot i fiberglassed. so i glued it back and added more fiberglass, and it's held up good sence. I'm not to worried about adding any weight with that magnum 91 up front. As far as my radio system i was using a futaba 6EXA with a standard futaba flight pack untill the 6EXA broke. Now i'm using my old futaba 5UAF. On my 6EXA the throttle stick resists upward movement. it goes up about 1/4 throttle and if i move it up more then that it feels like a spring is holding it back. anyone else have this problem? i sent it in a couple of days ago to have it fixed.