Hmmm...
I've been going between CinnaBomb and Green Apple...I've got my VK, 510, and VK passthrough all in one spot here, and I keep going between the three of them randomly. Sometimes both the VK and the passthrough at the same time (double-barrel vaping for the win!), sometimes the 510 and VK/PT at same time (apple + cinnamon = awesome!), and sometimes I even reach for my oft-neglected 103 and give it a few drips of whatever's clever.
Ever since I got this passthrough, I've been vaping myself stupid...I think my brain's saying, "hey, you don't have to worry about batteries with this thing, now you don't ever have to put it down!" so I end up sitting in front of the computer for hours, blowing cloud after yummy cloud.