Getting somewhere. Relatively. I tried dividing the readings from two softpots (softpot1/softpot2) pressing them in parallel to find the deviation ratio. It's like 1.11 at the beginning, drops to 1.02 in the end, but the transition from 1.11 to 1.02 seems to be logarithmic.
So I thought, perhaps I would be better directly linearising the result of the softpots. That way "tuning the softpots to an unison" would be much easier. Also, I bought them because they were advertised as linear, and I rather need linear readings.
I've been googling for a while and found some people who have done it, but they only mention it in passing.
Because they are already almost linear, it should be easy, but I'm unsure on how to start. Any ideas or previous experience in the matter?