Thanks for the reply on the 510 plug ins.I love my Sole i'm getting 2 and a half days of battery life out of it.Of course i am also utilizing the 5 click on/off in between 1-3 vapes to conserve,...hey it helps and works.You can get the double barrel from>health-e-
vape.co.uk for $20.00.It's the 450mah double clearomizer starter kit with 10ml
juice of your choice.For some reason it is a close out on them,....not sure why though???I do not think the Sole would support a double barrel system as the port going to the battery,and the size of the clearomizer would not support the space for 2 cartos.you would have to re-design the Sole's battery (make it wider along with the clearomizer) to make it work.
EDIT: I can't wait to get my hands on one of the plug-ins.On a side note, i noticed gotvapes is the only vendor that actually has the 1300mah VV twist ego
batteries in stock.Picking 1,or 2 of them up with the plug-in too.