So I purchased the Vtube from apollo Ecigs. I like the unit, I got 2 packs of empty xl 3.0 ohm cartomizers in addition to the atomizer that it comes with. The atomizer works great. Good vapor strong pull decent TH. The cartomizers however even at higher voltage produce very little vapor and I have to draw much much longer for the same effect. Is this pretty just how it is? I dont mind dripping when at home, but was hoping I could use the cartomizers when at work or out and about. Any idea what I can do to make the carts a more viable option? Thanks in advance.