Interested in these tanks for my Silver bullet and Provari that I've just ordered. I like the regular sized thank and the Tall Boy. I've got some tank cartos from Altsmoke, 1 DC and 4 standard resistance 2.0-2.5 Ohm. Will those fit the Tall Boy? Would it be better to start purchasing the Boge standards for use with the regular sized tank? I imagine I'd have to start punching my own if I went that route. How about dual coils for the provari? Worth it? What resistance would be best? I'm still not sure if dual coils, whether for a tank for just plain cartos would be worth trying, as single coil seems to work just fine. Any real benefits to duals? Thanks all!