Super stoked to see these see the light of day. A few things to clarify about this one that I have learned (thanks to
@THC SCIENTIFIC). The way this was originally described by bubbleman suggested that this tank works with rosin and full melt bubble alone, (that is, without adding terps to liquify the material). However, when I've spoken to Gary and then seen Bubbleman's new videos, it has become very clear that these pens are only for use with liquid preparations which will flow at room temp. According to Tony Verzura's feedback that I've read, the 'pull, push, pull' technique requires you to pull (inhale) on the pen prior to engaging the power in order to suck some liquid concentrate into the vaporization section of the pen. I imagine that this is why you need a liquid concentrate that will flow at room temp in this way.
Unfortunately, for those who can't find terps or terp added concentrates and who also don't wanna use PG/PEG/VG are shit out of luck with this one. However, this looks like a wonderful option for those who can get there hands on terps or concentrates with added terps to allow for this kind of flow.
To clarify, from the look of it, this pen will not work with straight rosin/full melt/BHO/etc. You need a liquid with relatively low viscosity.
Actually I should ask this question:
@THC SCIENTIFIC - For advanced users who understand the appropriate safety considerations to use this cartridge with a non-stock battery - does this pen work with TC mods?