J. Kissel, P. Fritschel

After the assembly team discovered a poorly clamped blade spring tip, I've run and processed another suite of TOP to TOP measurements. Attached are the results. I notice the following:
- The frequency of the second Pitch Mode (see page 5 of "allquads") has been successfully moved up, to be near where the rest of the known QUADs resonances are. GREEN FLAG.
- The Longitudinal, Transverse, and Yaw degrees of freedom appear free and clear, very similar to the rest of the QUADs (see pages 1 2 and 6 of "allquads"). GREEN FLAG.
- The DC magnitude of the Vertical, Roll, and Pitch transfer functions is about a factor of two to low compare with the other measurements, calibrated in a consistent manner (see pages 3 4 and 5 of "allquads"). YELLOW FLAG
- Where the vertical transfer function should only show three resonances at (0.55, 2.2, and 3.5 Hz), there's a whopping 4th one at high frequency at a cross-coupled roll frequency (5 Hz) (see pages 3 of "allquads", in addition to pg 4 of "h2susitmy"). RED FLAG
- In the Roll Drive to LF and RT response transfer function (see pg 15 of "h2susitmy"), RT is about a factor of lower in DC magnitude, and the shape of the response is completely different from LF, where they should be measuring the same thing. RED FLAG

Since Betsy and Jeff's work was on the RT blade spring tip clamp, I conclude there's still something screwy going on there. Given that the pitch frequency has moved up, something must have been corrected. However, I conclude there are two possibilities: mechanical and electrical, and likely *not* a rubbing problem. Here are our ideas:
 - the dynamics of the suspension are effected by the blade tip being strangely clamped (either not totally fixed, or fixed to some bad state)
 - the differential roll that's present at the top stage is causing the RT OSEM coil to drive dissimilarly hard (most probably less hard) as LF, causing a "vertical" drive to induce roll
 - the RT coil driver electronics have been messed up in the reassembly process

I'll have the assembly team go in for the final, final-final, final, final; just before final, final investigation and change before the finally cabling up the reaction chain.