I've used 50# trace mineral blocks and get plenty of deer and elk going to it. I found that if you can get a block that says it has selenium in it then you'll get way more action. The blocks with selenium run $1 or $2 more per block.
After all the talk I decided to give the 50lb mineral trace a go. I put it out this last weekend but will have no idea on what's coming to it because of a camera malfunction that I am now sending in. I know I had deer in the area previously so hoping when I get my camera back I will have some results to share with you guys. Trophy rock vs mineral trace, should be about the Same according to you guys.