Geo has a secret admirer?!
you can also hang mylar with aluminum tape.. (in my basement and I didn't want to build a structure down there to staple to, saved a ton of $ on not buying any wood for it) the mylar is like 4 feet wide, and my ceiling is 6 feet, so basically started at the ceiling - just ran a tape piece every 6 inches on top to tac it up and every 12 inches at bottom to snug it up and then went back and tightened it up with more strips of tape and a little tug where needed. that shit holds great on any surface I've tried it on.
Hey Grizzly,
if you take little pieces of cardboard and staple through that into the frame you will find the staples won't pull through... like a cardboard cereal box( I think Frosted Flakes works the best and you have a snack for when munchies attack), and cut it in one inch squares.. just a thought to try as you need to re-staple anything.