I have broken stainless steel covered glass although they take a few more bounces of the pavement! That glass tank would be an at home tank for me only used in carpeted rooms!
Well, after a few hours with it.. I LOVE this thing...
And the glass is fairly strong (at least it feels very solid, but not pavement proof of course).
Hey, by the way... in reference to the whole battery being charged in the mod thing... I just took my batteries out of my TC100C for the first time after at least 5-6 months (if not more.. I lost track of how long ago I have this particular mod and batteries)... popped them on my charger (as I didn't want to stop using this mod right now and put in the new set of batteries I just bought for another mod), and I was shocked.. SHOCKED I TELL YOU!!! They are still perfectly married at exactly 3.28V each....
So much for the whole USB charging through mods messes them up rant that the other guys keep doing.