Maybe just a different way of looking at things, but I would consider the CA:Mg and K to be the first 75% at this point in time. Maybe in future with more experience I will up or down this percentage. But having spent big on Magnesium, I don't regret it, YET. I reckon more kgs of beef sold off the farm will cover the cost aswell as lower mortalityIt's an interesting read, but I do often wonder if there's a financial return on going that last 5%. To the best of my knowledge there are no labs in this country doing the tests, there's one in Scotland, a Dutch company we deal with were sending the samples to Kinsey's own lab in the US but they were planning on establishing their own way of doing them. They're not cheap tests either.