Today as I was looking over my bean head I come up with a few more things to look at. Make sure to clean the top side of the skid plates of dirt and trash buildup as this will mess up the head control and make you cut higher. The head op book says to change cutting height move pointer on side of head (top of green for lower cut, bottom of green for higher cut(1 1_2" to 3"). Your 30' head is a little different than my 25' so look in the head op book. The face plate should only change the angle of the guards. I hope some of this helps you as your combine and head will do a very good job for you if it set right. Good luck!