I recently got two new Mega tank attys (one from Liberty Flights, one from Totally Wicked) They both had the same problem of not dripping into the tank resulting in very harsh burning after a few puffs. After looking at the plastic tank dispenser I've realised that the little hole is being blocked by a kind of 'bubble' of liquid which stops it dripping. (if I blow the liquid from the hole it works again till it blocks again) Why should this happen? Would making the hole in the dispenser solve it? Or would it mean too much liquid comes out? Thanks