I have had two undamped VPI unipivots, a 9" on the Scoutmaster and a 10" on the Prime. Yes, they are "fiddly" and need to be handled with care, but I like the simple technology and have never noticed any distortion or noise that I could attribute to the arm. VPI has now moved to a gimbled arm(s) and may not make the the old unipivot any more. I suppose there is a good reason for this change.
