No leaks or gurgle on the Mini PT-II but it is a airy draw. Covering one or two holes in the eGo ring fixes that though. My biggest complaint is burnt taste if i vape even slightly too fast. Mostly its with 50/50 juice. 70PG/30VG wicks much better but still need a "primer" draw if im vaping fast.
My PT-II though did go through a period of working fine then leaking and gurgles. Plus occasionally burnt taste with 50/50. Its been fine since the last cleaning and coil but i don't use it much anymore unless im in the mood for menthol. For some reason menthol and mint type juices taste a little better to me in the PTs.
ATM i prefer a carto, either alone or in a tank. It was a rough start but now i got them working great.
This is almost my exact experience with the PTII. Nothing really tastes OK in it except menthols. Everything else seems to burn up like crazy, even on the first hit. I always prime and drip my heads too.