What the trick to getter a better sample when cutting sunflowers? Seed is dry but the stalks seem a little tough yet, but we've been getting a lot for wind and rain and the flowers are are going down pretty bad. I have a 2388 and had it set anywhere from 240 to 310 on rotor, 750 to 850 on fan, I'm use one small wire, 2 large wire concaves and the grates have covers on them. I suppose it would work better if everything was bone dry but I'm trying to get them before the all go flat. I'll probably try to get a row crop head and try it if more go down. If you have any experience your input would be appreciated.