For 72 I picked 18. That yields a signal level of 40. The micro adjustment for AZ is missing. I made the mistake of over tightening. In the case of Chicago locals, is that error just because I'm outside the spotbeam?
The Chicago market eastern arc spot beam does not cover the MI "thumb" area. If you change your service location to the thumb location, you'll likely get the Flint locals. Your other location will lose the Chicago locals though, until you switch back.