Indeed this would be a great idea, since generally when I'm hunting with mercs it's a pain in the ass, Perhaps it should always be "used" by the merc/slave in the #1 slot so you don't have to pilfer through all of them? Granted some people might say it makes hunting encounters with mercs too easy but if they start costing money periodically and can run away it seems like a fair risk/reward
It is great. But why not for mercs too? I mean You payed Them to work for you dident you?
The same reason mercs don't mine. They're hired guns you pay to fill a combat role and are better at that role, vs slaves. Slaves are better at.... being slaves!