Mechanical:

        1)      Movie with the pick-off arms moving.
        2)      Folded motor has additional gear train - check specs for backlash.
        3)      Illustrations shouldn't show obscuration of the science field.
        4)      Use shallower angles at the tip-tilt and fold mirror (for making the overall length shorter.
        5)      Stalcup - can we use a yaw-pitch mechanism.
        6)      Do we need a pick-off for this ast all or use a tetrahedron
        7)      Stalcup - distortion of the on-sky of the fixed asterism on sky ... the uplink has one global
uplink mirror for all 4 fixed LGS's.
        8)      Eye-bolts to lift the LGS WFS assembly to facilitate lifting.
        9)      Access to the linear stage is limited (the structure is 200 Kgs). Jack screws.
        10)     Tracking of the sodium error needs more thought (PW)

Optics presentation notes:
>       1.      Don will provide info. on dynamic range for Fixed and Patrolling LGS from the RTC design doc.
>       2.      RTC-WFS meeting is required (2-3 day meeting at UCSC)
>       3.      Calibration implications - where do the spots really land.
>       4.      Doc. micro-dithering calibration approach.
>       5.      LGS focusing lens - double window.
>       6.      Requirement on the Patrolling W
>       7.      theta-phi mechanisms.
>       8.      P value [?], non-linearity - error budget terms.
>       9.      Flatest flat to the most-curved curvature (over the field) - nominally align all Patrolling
> at a delta focus WRT
>       10.     Current field stop is 4.0 arcsec
>       11.     Prove that the CCID56 cameras can be used with a dot-less relay.
>       12.     Alignment between the AO bench and LGSWFS package.
>       13.     Vibration and alignment tolerance issues.
> 
>