i'm building a viperjet 2M ... i was working on putting the elevator horns in and i got concerned by what there was to work with. when i drilled the slot for the horn i made sure i hit the balsa spar on the leading edge of the elevator surface .but after i got my slot done i realized there was nothing on the backside of the spar. so basically i'm relying on a 1/8-3/16 balsa spar to anchor the horn to. so what i did was i have some west 610 and i took a syringe and injected a fair amount of epoxy it the slot on the backside of the spar and the front portion of the horn was even with the front of the spar i was wondering if anyone else had this happen. there should have been at least some kind of block back there to help anchor the horn to .