Koji reminded me (again....this is probably the 2nd or 3rd time I've "discovered" this, at least) that the script
exists, and that we should use it sometimes. See his elog 7452 for details.
Notes about using this script:
* Only use it after MC has been very well aligned. MC REFL DC should be less than 0.5 when the MC is locked (with the DC value ~4.5 with the MC unlocked, as usual). This is hard to achieve, but important. Also, check the MC spot centering.
* With the WFS servo off, but the MC locked and light on the WFS diodes, run the script.