I know it, thus the
Honestly, I think the transformer but in 5v is close to 'perfect,' besides the things I know you don't wish to do - integrated USB PT, or added secure on/off for power. The slim as a transformer model would be very nice as well, although it would likely have different battery combinations/voltages/lengths in the added tubes...dunno, maybe longer, but still 'slim' for full mAh/voltage?
I know you and many others like/want the 6(+)v, I just really remain unsure of my comfort level on that, as you're definitely increasing the current to the atty, super-heating it versus normal operation. While I think it's great for atty cleaning, I'm not personally convinced I want to run my 510 attys that high, or that I want to vape juice at that voltage.
Note the video just done on the nano, even the comment there - the 510 atty doesn't need super high voltage to produce great throat hit and vapor, and I'm quite fond of my 510s.
I've got to go back and check out your voltage configurations on the xformer again. I really just want a solid 4-5v 510 atty equipped, decent mAh device.
The xformer 'end cap' is perfect for a bottle of juice. I'd *like* a higher voltage configuration, but honestly, I'd probably use it for atty cleaning, and not vaping. Configure it for 5-6v once a week and cycle through crustier attys, to do a hydrogen peroxide burnoff followed by usual cleaning, then back to 4-5v for my normal vaping.
One other thought, that I'm unsure what you think of.
If you threaded the *outside* of the atty end of the GG, you could then make a tube that slides on over the atty, connected or not, effectively making your entire e-cig - juice, gg main body, atty(s), 'indestructible' except for the switch. Or perhaps the xformer 'end cap' is already long enough for atty and mouthpiece storage as well? Seems like then you could literally 'throw it in a briefcase' with no concerns about breakage.