Many judgments of the VPI tonearms are based on the 10. VPI probably sold many based on Harry Pearson's first RAVE review of it in TAS. I was never satisfied with the 10 however, in fact I had VPI modify it for me very early on with definite improvement. The 10.5 is a much better arm even than my modified 10 and I'm much more likely to stay with it longterm. I also used a Audioquest arm long ago on a HW-19 table. It was ok, but I believe the 10.5 is much better. It's been awhile and aural memory is short, but the Audioquest may have been better than the original JMW 10 in several important ways. The original JMW 10 was sluggish and dark sounding IMO.