I have a Protank I v2, Protank mini, Davide Mega and mini, and a Puritank that I just started vaping on tonight, although I received it a week ago ... what a monster, lol! The Vamo on it's own is heavy as heck, couple that with the Puritank and my set up looks and feels obscene!! ... HUGE!!
I love my glassomizers, both of my Mini's (protank and Davide) are my best performers. So far the Puritank vapes so smooth, and the flavor production is perfect, but that hunky metal drip tip is way too big ... doesn't feel quite right in my mouth, so I will definitely be replacing that. I find that the big glassies vape better on a Mod, than they do on a Twist.
I am really digging the sleek look of the Aspire ET-S BCC glassomizer in stainless (which I don't own ... yet) ... too bad myfreedomsmokes charges so much for shipping, which is a little bit of a turn off ... and perhaps a blessing in disguise because I really don't need it.