Guys I use several mineral licks on my property although I rarely hunt over them. I don't want to spook the of of them and want to give them the confidence to feed off of them at any time.

Here is what I use:

2 parts trace mineral salt
1part stock salt
1 part di-cal - dicalcium phosphate

All this can be bought at the l;ocal MFA or feed store for about 23 bucks for for 200lbs.
I treated my licks twice in six months and yearly after that. I have had to move a couple of them due to the size of the holes being dug.
The only thing I see different in you mixture is the lack of the di-cal witch is a dairy cow supplement for producing milk in dairy cattle. This also happens to be the main ingediant in a bucks rack. I have noticed that the licks are used more often right after the rut and in may june and july when does are producing milk and bucks are growingthere new racks. It took about a year but I am deffinalty seeing a big difference in our deer.