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The 3m profile sensors were not moved through configurations 2-4, so that a discrepancy remains between the heights of the 3m profile sensors during configuration 2 (sonic:=3.77m and SHT=3.75m) and those for configurations 3 and 4 (sonic=3.69m and SHT=3.67m). This implies that the reference mark height for configuration 2, measured at the NE horizontal array tower to be 1.76m, did not apply at the profile tower, but should rather have been 1.68m. (Note that simple transposing the last two digits of 1.76m gives 1.67m, which is within 1 cm of the implied value.) Kurt very carefully kept the baseplates of the 6 towers for the horizontal array at the same elevation using a 4' carpenters level and presumably did the same for the profile tower. It seems unlikely that there was an 8 cm difference between the elevations of the 7 AHATS Roan towers. Assuming 1.67m for the height of the reference mark for configuration 2 gives the following heights:
| Sonic 1 | SHT 1 |
| Sonic 2 | SHT 2 |
| Sonic 3 | SHT 3 |
| Sonic 4 | SHT 4 |
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upwind | 3.75/3.25 |
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top | 4.25 |
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bottom | 3.25 |
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8m | 8.01 |
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7m |
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5.5m |
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3m |
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1.5m | 1.51 |
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