Well, it's spring mineral season. Do you 1. put out the high mag block? 2. put out the fly control block? 3. put out the bloat block? Problem is, if you put out all three, they won't eat enough of any of them to actually work. fortunately I calve in the fall with limits my chances for grass Tet. flies are ramping up and the animals are already on grass so I chose the fly control block and lost one to bloat the other day. Gonna have to see if someone will make me some mixed mineral that does all three......