i OWN A PURESMOKER v3 that Ive had for close to a year now. its my favorite PV Ive owned. i always seem to go back to it no matter what else i get. i was always a 6 volt vapor but have been getting into 3.7 volt with LR cartos. i was wondering if i just bought the icon tube if i could put the switch and end-cap from my V# on it and will it fit/work properly? has anyone else tried this?