I have tried every type of rock,block, recipe, lick etc. and nothing works any better than the 50 lb. generic blocks/ bags that you can buy at your local TSC or feed store for $5.00 each. And since mineral supplements do not benefit deer in any way other than providing them with a source of salt there is no need to waste money buying a commercial mineral supplement with a huge buck on the package or time and running all over town shopping for ingredients then mixing them etc. when you can just go to your local feed store and buy 50 lb. blocks for less money.
Here is a link to my 2009 trail cam pics to show just how well generic mineral blocks/bags work. Pike
http://smg.photobucket.com/albums/v2...%20Cam%20Pics/

P.S. please disregard the first few pics of our new pup.