Check with the guys at Blue Mt. AG in lewiston, Idaho for I believe they have it under control. gleaner10@aol.com or 208-746-6447. They do need to be upgraded with the 3rd helical extention, extended cylinder bars (no reverse),seperator grate cover kit, and they were going to blank off some of the thresher concave for this year. N's worked good so we figure it is just getting overthreshed. I could get you the name and number of a individual farmer who is on the forfront of fine tuning his R62 to roar threw grass and wheat with minimum altering between crops. I think the main time they were having trouble with the grass is the slopes with the extra shoe load. Thanks for checking this out for your friend and let us know exactly what upgrades he did and maybe he missed an important one. Catch you later.