The JS is a good vaping product, my only issue is the amount of plastic and the ease of it beaking upon dropping, Cos I drop alot, However, it is an excellent stealthing cig and has a lot to offer for the size of it, Plus I do like the ability to connect w/ a mobile device
As far as what I take w/ me on the road, actaully I take as many as I can,in a carry bag, I never leave home, or even a room without it
I do care as much about what it all looks like out on the street, I will vape anything, pretty much anywhere, although I am stealth vapor, I do not do it in anyones face, for attention
The harhness issue, I am refering mostly to the VaporKing type cartomizers, at higher voltage they vape real well and create a ton of vapor and a great throat hit, I have been using the 36mg Vk caps from Cigeasy, although they may not be continued, I still find even at lower MG's of the VK caps, they have a great hit, so no matter what mg I use the higher voltage and the caromizers all work well
The prodigy can take/fit higher voltage batteries, however, it is controled by the switch, to keep it at 5v.s, so I dont even bother using different batteries,
The GG adapters are only sold to GG owners, as far as I know and remember, they appear to be the best all around adapeters I have found,
So, yes the SD can take any of the GG adapters, predicated on having the 901 threading, and some not all of the VK caps will fit on the SD,
hope that helps