I really dont see how this is possible - i use only one atomizer, and i vape quite hard - and others on this forum vape even harder, and none of us have a problem with the attys overheating.
The problem for us, is that we want to avoid people buying one ego set + one spare atty cover - and then splitting up the set into two full egos = as that is not the point of the ego set.
So - we are debating what to do : do we overprice the atomizer covers? Do we bundle them with other stuff - we need to figure out a solution that will provide our users with what they want, without shooting ourselves in the foot, if you understand what i mean