ya the prepunched holes. maybe im filling it too fast? hmmm dunno. nope in fact I smoke virgin vapors 100VG but its really the same consistency as a 50/50.but lasr time I ordered (which is the juice im using now) I did have them thin it down even a bit more since thats what they're website reccomends for using in tanks, like protanks, which is what I was using before. so maybe it is overly thin. I personally dont think it really looks like it, but eh, maybe it is, maybe it is....so now that we have indeed established thats not ever supposed to happen, how do I stop it? any ideas?