Rocks, I still have to ask the same question from the other thread.

How many degrees of elevator movement do you have? Is it more than 45 degrees and are they equal in all three sections (upper, mid and lower quadrants)? If so, your horizontal stab many be slanted to one side which would make it snap when too much elevator is applied? Are you laterally balanced also? Do you think you could be snapping it from stick movement also? Just thoughts of what may could be happening.