Pot jitters during ADC capture

[Demon]

With these pots (slider 10K) I would first use an opamp as buffer, feed a 1K series resistor, then a parallel 10uF cap and then a buffer opamp again before driving PIC input....

I had never seen that suggested in my "debounce potentiometer" research. Starting to look into it (after I understand what it's doing ).

... Most PIC I used before had 10K input impedance of Sample and Hold ciruit. This 3K that Henrik mentioned is too low for a 10K pot! ...

First time I hear that too.