Hi there, I noticed some encoders sometimes make the values jump and I suspect they may be weary.
How would you go for some maintenance?
Cheers!
The mk1s can be up to 6 years old these days. The wear of the pots depends on the previous use. I saw controllers with the pot shafts bent and detached 
I would first check if the jumps are in the identical position (by turning cw and ccw in the problematic spot). That would point to a problem with the resistive tracks.
If the problem is hardware related, the only way to fix it is to replace the pots. This is doable and we can provide replacement parts. However, it requires some soldering / desoldering experience. The work needs to be done carefully to avoid damaging the pcb and tomake sure the new pots fit properly.
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I just tried your Zoom L6 preset. I can see some value “stutter” there when changing hi-res controls for frequencies. I will take a look at it. So, it might be a software issue…
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