A Pots question

I got pots at start of this process when I knew that pots and joysticks were something used together and nothing more biggrin

I tested pots in sim (CLOD) and they work and have them as X,Y,Z following KB's advice.

But do I have wrong type of pots for using with Surface Trims, as these are linear!!

Or is there a setup ability in MMjoy?

Also 1 of them in particular seems to be very jittery?