well I did it, i bought the $5 supposedly 0.15mm glass protector... and i'll be damned it's actually glass. since i had also bought a 0.2mm glass chinese one which even says glass.tr on the package i figured why not see if this $5 one breaks. i bent it and there was a loud crack noise and the film was shattered internally. i'll add pictures to a new thread.
That one works great for me...called cybertech I think.