Just wanted to verify what riverboat said. I started out with the AW protected batteries as suggested by Provape, but have now been using the AW IMR 14500 and it has been working flawlessly. It does rattle a bit if shaken hard but I have yet to have a misfire.
I'm curious as to why Provape does't recommend them (though there are no warnings against using them) or carry them on site. I would suggest they get rid of the cheap Trustfires and carry the AW IMRs instead. With an 8C rating and safer chemistry its a no brainer for LR.