Yes stick with the walkers. If you dessicate with Reglone you will have some green stalks and the walkers will handle it better. Invest in a round hole precleaner and you will save a lot more seed and have a much cleaner sample. Also use an air flow chaffer and make sure your concaves are level , not worn and tighten right up. Use at least three rows of filler plates. Any other questions on Alfalfa Seed and conventional deeres fire away I have many years experience with everything from JD 95s to the new European style conventional and all conventionals in between. Best ever was the early John Deere 9500. I could get down under 5 % dockage with acceptable losses . Could never do it since then.