Spud- You can read about it in Tim Wilmots farming magazine column if you havent already. They actually did better than me. I think its going to be really fickle depending on the year. MIght get lucky or maybe not. Just depends on the year I think. Some of the guys in that study only got a couple runs and it froze up so you cant help that. Just one of those things that a guy has to decide it its worth it to him to try it or not. Theron