Comment sts SNF 2008-11-13 10:19:01: Ran a LFreq. and HFreq. test

[jperez at snf.stanford.edu]

Test results after Jim adjusted and tighten screws improved
Low Frequency dep. rate and uniformity.
Improved High Frequency's unifrmity, but not dep. rate.
LF DR 387.6 A/min.  RI 1.475, Uniformity across the wf.<2%
Hf DR 351.3 A/ min. RI 1.467  Uniformity across the wf 1%