my take on the prime after a short use(mentioning the only tank i use is a kfl+v2):
i'm on the smallest air hole, and it's just alright,and that is while using the kfl drip tip which has tiny holes,
i guess that with the one that came with the prime it would have been too airy.
the taste is not great for the moment,maybe i have residues of some sort,whether from the factory or from the soap i used to clean it.
also plenty of clouds coming out of it,and i get a much more nicotine ,so i'l try to either lower the watts and/or putting the extension kit.
overall it's just ok for the moment and the kfl+ beats it big time in all aspects.
(maybe the prime isn't good with menthol liquids which are the only ones i vape for now.
anyhow,i'm not disappointed,it's a good back up tank,but i think manufacturers forgot what MTL means.
i don't intend on getting any more tanks for now,especially those high end ones, only the berserker mini and then i hope i'm set.
also mentioning that it's not that small,it gives that impression,but it's just a bit smaller than the kfl+,and that is with the 2ml tank.