You are so right, Mtbigsky. It wasn't the hydrogen that "blew-up with the Hindenberg, it was the skin. Besides, with hydrogen being so much lighter than air, if there was an "accident" and the strat blew up, it would all go up,... not down.
Besides, the hydrogen could be contained in bladders well inside of the strat, surrounded by either nitrogen or helium, and stil get most of the lift one needs, and not the leakage or "danger"
Somebody just needs to explain to my why this won't work.