I just loaded up my Stardust with a new liquid about two hours ago, and I've gotten a mouthful of liquid twice. After the first time, I rechecked the seal on everything and tightened the drip tip and that seemed to fix it, but I just took a puff and it happened again. Any advice? I'm thinking it might be that this liquid is a bit thinner (70PG/30VG as opposed to the 50/50 I was using), but 70/30 seems to be a fairly standard mix. Anything else I should check? I'd really like to avoid that happening again, because gross 
ETA this thread should be called "Mouthful of liquid". My bad.

ETA this thread should be called "Mouthful of liquid". My bad.