Does ANYONE have a solution to keeping the Vision clearos from gurgling/leaking into the batt connection? 1.2 ml 2.5 ml both gurgle like mad. When not, they are my faves...but that's only 1 or 2 hits after a cleaning, then gurgle city...I blow them out, flick the mouthpiece, don't overfill, etc. I modded the silicone seal on the inside lip to improve wicking, (if I don't I get dry hits), and I'm only filling to the bottom of the ceramic. Help please....