We tried it last fall, along with the switch to the Vita Ferm Mineral. Our conceptions were better, and our recips did great with implantation of the embryos. We did one flush, not so good there but I think there was a problem with the semen there. Anyway, we did not use it this spring, but stayed with the Vita Ferm. Still having outstanding conception rates with AI and embryos, along with return to heat quicker than average. So do I miss the Multi Min? Nope. I will use it for a flush, just to cover the basis, but not for all the other stuff now.