The results for this weeks charge measurements are attached below. For the ETMX, the effective bias voltage is spread (quadrant wise) between 0-25V. The long term trends looks to be stable and has not changed past several weeks. For the ETMY, the effective bias values are very close to zero, not much accumulations which is once again consistent with long term results.

I have restored all the values after the measurements were done, and have also checked for any SDF difference (bias offset was once again OFF for ETMX- which I turned it ON).