I usually just use glyphosate at about 2 quarts An acre but with grass and grass weeds being our probably almost every fallow season I was thinking of adding 6-10 oz of clethodim with about 2 quarts per acre of glyphosate to help with the grasses, clethodim from what I can find doesn't have much of any soul residual to worry about when it comes time to plant like some others. Has anyone ever used this mixture?