PLAN B analog blog

In another thread the function of Model 14 Offset knobs was explained, 
but I didn't understand it.

I process CV:s with my M14. I can't get the Offset knobs to have any 
effect on the corresponding Min and Max outputs. On Sum outputs the 
knobs affect DC offset, as expected. What kind of effect are the Offset 
knobs supposed to have on the Min and Max outputs?

Can I somehow compare two or three positive CV:s and get the minimum of 
them - other than ground/zero? 

Best regards
Jari Jokinen