| understand. He said it wasn't tested at higher than 2.5 because it would not be efficent in that range, when the old chart clearly shows it to be efficient at some areas in that range. He says the new map is more accurate (resolution) than the old map, and it should be used in its place. But then he said you can still use the old map when going above 2.5. When they are clearly different below 2.5 as well. I guess this is the explanation I was looking for, I am just less than impressed by the contradictions in it. I can ask for better answers all day, but at some point - it just gets old. Thanks for digging that out Dee. Side by side for reference
 
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sounds like a response from someone who doesn't fully - 
