So, after the sell of my Triumph I'm in the market for a Shovelhead. I'm trying to educate myself on the early Harleys as I've never owned one. I'm learning about the different model designations, etc. My main interest is in what year and designations should be avoided, what to look for when inspecting a prospective purchase (chronic failure points, etc). I've done a search and found several helpful nuggets, but would like to know more...