I have seen a lot of posts and pictures on here lately of people plowing. I haven't seen many people in my area of Iowa doing this for maybe 15 years or so. It's kind of frowned upon, especially in the fall. There seems to be a lot of wind blowing dirt around and washing if we get a heavy rain in the spring especially on hillsides. I'm not saying it's a bad thing to plow, just not as common around here as it used to be. Plowing probably allows for better weed control!
I have a 550 plow that I use on fencelines about every 3 or 4 years. I do quite a bit of disc chiseling in the fall if time allows before the ground is frozen.