Hi foxtrot82... this what we did to mine...pulled every thing out so we could pour epoxy down to the firewall on the inside of fuse...put paper towel in hole so you dont make a mess, make sure to put the motor mount bolt in just enough so the epoxy doesnt clog the threads...or you can have them all the way in and use epoxy as thread lock.. those darn mount bolts came out on our 2nd flight , lost two and the other 2 where in only 1 thread...have fun with the alpha, it does fly inverted.....spooner