It could be like this: if you reach for example Desert of Fangs, unlocking thus the 1250 EXP potion, you should be able to farm skein easy, and receive them, in accordance with the highest type of potion you're dropping, because let's face it, we waste a lot of tokens trying to farm lower levels maps and since drops are now decreased in quantity we should at least have the possibility of keeping our team updated based on our current level.

Interesting idea. Would you have them all equal then?

This is of extreme importance now that potions have been utterly nerfed.