Hi folks...I'm using Boge 510 DXXL Stainless Cartomizers with a 2.3mm laser pre-punched hole and a Stainless Steel Quartz Glass tank I bought from Vermillion River. I'm not overly happy with the tank/carto combination as I can't get the carto to seat properly and it is easier to just remove the top cap to refill than it is to push the carto down. I have this attached to my ProVari and, where it should fit flush as there are air channels etched into the bottom cap, it has about an eighth of an inch gap. It works fine (especially with some Boba's Bounty as that's all I've used in it up to this point), but I was wondering if anyone else out there has had problems getting cartos into their 'proper' positions. Thanks!