Rubber band for contact point reading?
On some very sensitive dials, I've tried using this trick. A thin rubber band with just enough friction to turn the dial to the points of contact. The rubber of the band offers friction, and elastic buffer to help prevent riding over the contact points once touched. The amount of tension can be easily controlled for consistency. The band is held with just enough tension to turn the dial, but slide along the bottom of the dial when resistance overcomes the friction.