OK, you guys are going to get a kick out of this one. Boy am I red in the face. When I was spot metering I was looking through the wrong end. I switched ends and now the readings match. You guys telling me the readings should match up pretty close helped. As I was testing again, this time I reversed the ends and the reading was much closer. I had looked at the manual but it wasn't real clear which end to use. In my defense I've never seen anyone use one, and this is the first meter I've ever seen.