im using aquanet on the heated bed and have no issues with the print sticking. i have a fan now, it seems to help a bit. but i havent retried the not so great prints with the fan. i was hoping someone had found the "perfect" PLA settings for this same setup... i see some amazing prints on thingiverse, but am slightly disappointed at my prints. though i do believe that minor settings tweaks is the issue not the printer itself.