RE: Mineral Licks
Look - there isn't much risk in putting out excessive salt - I mean - the deer aren't going to die from to much salt - the question is what do you want to accomplish?
If its to attract deer - then ANY SALT works great from April-August - but does little to hold any deer to a specific location for hunting season. In fact, it would be RARE indeed to have much activity at all on a lick in Oct/Nov (save maybe a fawn or two),
Why not put out a salt/mineral mix for lactating does in May/June, and possibly through July. If the lick helps antler growth - Great - but don't bet on it - Its never been really well proven to help antler growth very much.