distinguish states with color legends

NCL users, The attached is a NCL example script for two US states. (1) Texas cover more area than it should be, what error could there exist? (2) How to employ high resolution data, e.g. [res@mpDataBaseVersion = "HighRes"]？ (3) Could one give a suggestion that each of states (could be more states) has different values (whatever meaning) and how to use a color legend to distinguish them based on the example script? Thanks a lot! Mark

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