I've been flying my u can do 3d since march with only minor problems mainly screws vibrating loose. The stock spinner broke and I replaced it with a greatplanes 2 1/4 alunimum spinner. I had to make the canopy removable to get it in the truck and i'm having problems with the screws vibrating out during flight any suggestions? it flies great i love it.

OS 91S four Stroke with 14X6 Prop, I get close to 30 minutes flying time
4-40 rods all surface controls
dubro giant arms
G.P. filler valve
Voltwatch battery monitor
In- Cowl glow plug setup remote in fusalage
MPI Switch/ recharge combo
JR XP662