Mike I've been waiting patiently{well maybe not patiently} for the Black Buzz. Now I'm waiting patiently for it to arrive...HELLYEAH!! Normally a GGTS w/18650 is blowing vapor clouds around my head. It's got a 901 cap and I use either Vapornine or V4L 808 cartos. I also use 901s from time to time. The 808s screw directly to the 901 on the GG. I muffed up and ordered a 901 to 510 instead of a 901 to 808..Left you a message on that. I'm taking it that unlike the GG the Buzz 901 won't readily accept the 808. I also saw the Buzz came with an 808 cap...I would like it with the 901 cap and an 808 adapter....Thanks and eagerly awaiting variable voltage...I have the juice ready..........