You are most likely correct.

I remember heraing a vibration during my run up but wrote it off as mono coat vibrating.

I was 5 min. into the flight when the stab 's broke off, one completely and one partial, that how I got it on the ground.

The servo's are new digital futaba 3151

I did not seal the hinge gap. (very seldom do)


Thanks.

Hobby_man