I really prefer the draw of smoketech cartos in my IBTanks vs Boge. Boge seem to dry out really fast for me no matter what I do to prevent it and I dont get good flavor even when using LR boges in my tank, so I have tons of 2 hole punch Smoketech cartos. The problem is (which I know tons of us run in to) that smoketechs can leak like a .....! I have found that if I tip the whole tank and battery up so that one of the carto holes is not covered by liquid the in the tank that I avoid major flooding (and no I am not "pulling" or drawing in too harshly thus causing flooding). This method is a little extra work and kind of hurts my neck after a while haha. Does anyone have suggestions as to what I could kind of block one of the holes with in my carto before sliding it in to my tank? I have a feeling this would work really well and I cant seem to find any smoketech cartos online that only have 1 hole punched, plus I have so many 2 hole punch cartos already I want to make them work!