That tank looks really interesting. Pyrex, huh? Do you regret the price? That's one of the most expensive tanks out there!Received my Plasma tanks today from Boulder and built a 6 wrap 2.5mm 1.1Ω coil for the Kayfun. Had some difficulty screwing on the tank, though. Finally got everything put together and started vaping....and it was fantastic. I had forgotten how great the flavor is from the KFL+. Then I got my first slightly dry hit - too much cotton. Rewicked and haven't had any issues in 3 hours of vaping. This tank is awesome. Going to have to get another Kayfun and probably the PlasmAir (my wife likes it too, but needs more airflow).