Thanks, lot of good info with that link. Here's another question, I'll probably go with the 50% mineral salt, 50% Di-Calcium Phosphate mixture. Can you put too much down on the ground and actually keep deer away? I remember reading on Deer Caine not to refresh the site more than once every 60-90 days or else the minerals in the soil will be too strong and it may take some time for the deer to come back. The one person posted a 1' deep hole by 3' wide, would I just fill that whole thing up? Thanks again, i'm really ignorant when it comes to this stuff