Originally Posted by gadgtfreek
Knowing the plasma, could be it. My GT30 wasnt like this on 10 though, so not sure if its the newer panel, or the lower black level causing the issue. Its not huge either way. Generally, on a good display, if you just calibrate 30 and 80, the rest are pretty well in line. That is why rather than calibrate to something changing, I just left it at 0,0,0. I did adjust gamma at that level though, that seemed to repeat results nicely.
BTW, I wanted to apologize for being off-line for several days. We have just moved to Missouri from our former location in Maryland, and I have been overwhelmed with the logistics that this entails.
To address this issue, we have been struggling to get good repeatability on plasmas at 10% stimulus for some time. After much trial-and-error, I think that we have finally nailed it. See these demos.Single ReadingsContinuous Readings
Continuous is absolutely stable and single readings do not vary by more than 0.002.
gadgtfreek, I have left you a PM with a link to a 2.4.1 beta that has this update implemented. Please test it and report back here.