Jeff,
Thats probably right, Just a little difference in height makes a lot of difference sawing. The gage we use is called a file-o-plate if i remember correctly. It is made to check cutteredge angle, tooth length as well as other things. The only thing I ever use it for is to file drags. It has two little holes (A&B) you stick the drag through one of the holes and file off whatever sticks through. Use A for hardwoods and B for softwoods. Since the plate sets at an angle between the base of one tooth and the cutting edge of the tooth that you are fileing the drag, the drag is filed for that individual tooth. That way each tooth on the chain takes off the same thickness of wood. Makes it cut smoother and straighter.
Didn't think I could make an entire post without being silly did you? Well, I guess this shows just how right you were!
Noble
