Yes I've been on a run once, mid 40's. I'm not professing to knowing it all but I believe I'm knowledgeable, with a lot to learn. You are right about the self confidence. That's why I'm asking, if I had 15 year newer machine but had more hours which is worse? I have about 600 acres of my own Milo to cut this fall and I will have more knowledge of my machine as I just purchased it.