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In an attempt to think through the profile problem further, Chris and I had a discussion about trying to use longer booms at at least 7m on tt. Another option would be to raise the new 20' t0 to 30' and put 7m on it. Keep those ideas coming, folks!
P.S. The t0p problem was that its EC100 also was set to ASCII. Grrr. I connected over minicom and changed it back to binary. Also updated stats_5min.xml on ustar to include it. And qctables now displays t0p.