How do you mix different turfgrass seeds together? Lesco no longer markets the "midwest" version of its Premium Athletic Blend, and I need a plan for two lawns. Two of the "missing" cultivars are still available "Hallmark KBG" and "Shademark Red Fescue". I know how to figure the mixture proportions, but how do you blend them without damaging the seed or getting an uneven mix? I know I could reload the slit seeder and make a pass with the other cultivar, but that would be a pain as I will have already made two previous passes. Ideas?