I don't see why pollen would be any harder to keep track of than seeds for selling.. Seeds could get mixed up just as easily

at a point, what sort of pollen it is wouldn't even matter all that much if all it was used for was producing a few seeds of a good strain every harvest or so.. as long as the pollen plant was quality..

I think this next grow if I get a few males I'll set up another room for them, and see about producing some pollen to trade around locally with other growers if its legal..