I don't think so it came in a big sealed bag, and I've tried some of the other cottons that came with the coil master tool kit and it's the same. I play with the airflow every time I rewick but no dice.
I would just stick to the Zeus but I spent a good bit of money on the stuff for rebuildables so I'm going to keep trying and I'll crack it eventually. I've only tried a couple of wicks in the hellbeast and destiny and haven't changed the coils yet so hopefully I get the hang of them quicker than the mongrel.
Going to ring some local vape shops tomorrow and see if I can go in and do a build there, it's probably something really stupid I'm doing if all three have the same issue and I just don't realise what it is.
I'll post again after I've been in and tell you what I was doing wrong, or if I manage to fix the issue before then.
Again I really appreciate all the support and help.