Would be honored to oblige, but in which file(s) do we find the renown values ?
The only thing I would do is change them to negative values, and PM the file back to you, for validation by the GWX team.
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If you have an apple and I have an apple and we exchange apples then you and I will still each have one apple. But if you have an idea, and I have an idea and we exchange ideas each of us will have two ideas. G.B.Shaw