So, I got the grand vapor trident atty.. haven't really been able to use it and just kinda tossed it to the side and came back to it today. The atty fit fine on my popular v2, but every other mod that I have it just doesn't go in.. it's.. really weird. tried it on my poldiac and nemesis, doesn't go down and I don't want to force it down either. Did I just get a defect or what?