So far no troubles, these pots are very clean. Also, I'm only using Helios for this and the RWR overlay (Simshaker and Helios gauges do no play nice together, so I've chosen Simshaker), perhaps it's more of a problem if you're using a bunch of gauges and switches.
I did have that trouble with DCS bios when I did a little testing with it but I found a bit of code that smoothed the input signal completely.