To those interested...
Big complaint in the FC thread slamming the iolite is the goofballs breaking off the stem.
If you're silly enough to have that happen- replacements are fifteen bucks for a new EXTENDED mouthpiece and thirty if you need that and also managed to somehow fuck up your chamber.
Don't let self proclaimed smucksperts like tiger deter you from checking out the Iolite. It's quite a nice little vape.