Moisture was around 12-13%. Pretty dry and it was hulling fairly easy. As I was told from Mr. Massey combine himself, that rotor is just bigger and the settings will be different than what you are used to. If it was tough I was running it up to 650-670 and in the heat of the day I could slow down to around 600 and be just getting it! You should be able to run faster than 3.7 with a draper, even if it is 5 feet bigger than my auger head. Our wheat made anywhere from 60-100 with an overall average of the low 80's. In our worst field I was running 5.5-6mph. Run your fan wide open, top screen wide open, rotor around 650 to start and see where you are at. I had to put in the concave wire kit and 2 filler plates on the front concaves to get it to hull out the small bits of broken heads. I plan on leaving the wires in for milo and maybe rice if it works. We strip our rice so its not much threshing and there's an awful lot of wires to pull out. I imagine they will have to come out for soybeans.