Finally had a chance to look over this in a little more detail and I think what you found will be just fine. Both the Phosphorus and Calcium levels in that mix are lower than what comes in mine, with the Phosphorus being substantially lower. (Mine runs 18.5% or more on that front.) The thing to remember when running minerals is that regardless of what is in the mix, genetics will win 10 out of 10 times when it comes to developing a rack to its fullest potential. When we supplement minerals, we are hoping to fill a void in our deer herds diet. Most experts will tell you that calcium and phosphorus are among the most important minerals in antler development, so I try to keep both in high supply in my mix. You're calcium level is within 20% of what my mix contains, so you are close there. The only real deficiency I see here is the phosphorus level, but I still think it will be a mix that deer will use and benefit from.