Used the mflb in the bed with the gf last night while she slept without having touched it in like 2 weeks, having just used the vapobowl and occasionally the vapolution. What a pleasant, awesome little vape, completely silent and actually delivers a good hit if the batteries are good.
It's just a bummer when you're out and the 2 batteries you took both seem to be underperforming despite being charged by a "quality" charger. I guess the PA changes everything, but it changes a badass portable into a tethered, but potent vaporizer.
My unit is the generation with the oring and pushback ring, but also with the copper plating over the stainless steel. The copper is visibly flaked away where the battery makes contact and I fear for my health, and other people's, but I also acknowledge I might just be cautiously paranoid and it poses no threat. Do you think MFLB would take a warranty return based on that flaking? I understand the new generation is stainless steel (way safer than copper) with no copper coating, which I'd vastly, vastly prefer and would have waited to purchase if I'd known there was to be an evolution of the design.
It doesn't get much to get people to convert. 
