Hi All - I wanted to share an experience with you all and get some feedback/discussion on the matter. Been working on some cool workholdings, and setups and as I was working on this with having the dial indicator out, I wanted to conduct some spindle runout testing. I was immediately concerned about some excessive run out identified past the collet. What I mean by this was the spindle did not have any noticeable run out, but the collet did. I was kind of shocked as this was a Amana Collet, and Maritool Collet nut, both higher end stuff (I'm just saying these were not $2 aliexpress parts). Upon trying other collets and nuts, same brand, the runout diminished to zero. Again, I was even more surprised. I came to see that the tightness of the collet plays a critical part in the runout, and also just luck of the draw in how its positioned upon tightening. Does anyone have any interesting stories about this, best practices, etc.