Crazy glue is a fine idea.
TAC 15 mounts on your own AR lower, so the trigger will be determined by what works with your AR.
I'm not aware of any other arrows.
I would suggest NEVER cocking the bow without an arrow present to eliminate dry-fire.
And, of course, always point in safe direction.
Hopefully the 2013 Elite and Ordnance cocking mechanism guts will be improved to reduce the types of failures you encountered.