Hello, I'm having a terrible time trying to cut my mustard with my 1020 header, I'm constantly on the real adjusting fire/aft up/down.. And it keeps bunching infront of the feeder on the knife. And it's just not feeding very well.. I have another combine going with a 1010 header and its feeding way better, I think it may be the auger height? I tried adjusting it (lowering it) but I forgot which bolts I need to tighten or loosen to do this? Or should I try something else?