@ericsch on why the replacement head shell
I’m opting for the minor upgrade in head shells for yes, azimuth adjustments primarily. I’m not expecting huge gains in sound over the stock head shell, but some have said it was a step up.
I also want the same head shell for comparisons between my two carts. My AT ART9 is new and not even broken in yet. Once it fully blooms I’ll do A/B testing with my Lyra Delos. Another thread on this site that focuses on the ART9 suggested by some that the ART9 might be the better cart at roughly half the cost. I want to see for myself so I have to have similar mountings. Early listening has convinced me the two are quite different. Being better depends on lots of things. The ART9 has a fuller presentation and perhaps better channel separation. The Delos is very precise with perhaps deeper and better controlled bass. Still too early for the final votes. We’ll see. The idea of having two carts I like for different things is not bad.