A small hint on putting the tail together with that pesky screw. First thing is to get that elevator pushrod off the servo and remove it from the airplane by sliding it out the back of fuse. Second, if you ever have a screw that is non-magnetic and you have to get it into a small space (i.e. tails of XTRA Easy 2's and Alpha's), put a small dab of CA on SCREWDRIVER tip and set screw on tip pushing and holding while CA cures.. This will hold it in place while you insert it into the slot/hole. I use this trick on full scales at work all the time. You can also use a small dab of thick grease. Once the screw is in place, it should pop off rather easy with a "rocking" motion. Hope this helps for future H9 assemblers and in future uses elsewhere.
Nik