I believe the RGB flickering you describe occurs for the same reason the 'probe' returns a different frequency each time one synchronizes it with the panel at the beginning of a session. The output (refresh) of the panel varies on a subsecond basis.
At higher values (~>30%) the RGB measurement will eventually stabilize. On near blacks (10, 20%), it typically measures a wider band, but usually 'flickers' consistently between two dE's, so if the meter doesn't settle down, I use the mid point. More accurate (expensive) meters take more readings in the same amount of time compared to the i1.
No doubt the blue slider influences the B value, perhaps by one tick. After adjusting B, I remove the slider and remeasure.
Iirc, one can change 2pt and 10pt from the service menu, which could make calibrations less tedious.
Last edited by bmcn; 01-14-2015 at 03:01 AM.