eBay Reground Cam
I know that I'm an amateur at this, but my methods are improving. This attempt was done with tip extensions on the indicator centered in the lifter. I also used the magnetic base instead of the flexible vice grip mount. I made sure that the indicator was in line with the lifter. I did have one case where the tip rode up on the cup, and caught it right away because my readings completely changed. In my experience with dial indicators is that if you have things moving around, the reading will be all over the board. I was returning to zero (+/- .001) every time.