I am looking at buying a JD645fd, and am wondering what type of sickles to equip it with from the factory. It will cut mostly Soybeans and about 100 acres of oats a year. Most guys around here run the long/short sickles to get a better cut in their no till beans, I have always ran long/long. I would switch to the long/shorts if I knew they would do o.k. in oats, anyone have any experience?