@slaw, I know the Moerch arms are another favorite with Rock owners, which is surprising to me given their relatively low mass characteristics. I’ve seen listings for a Townshend Audio Excalibur II arm, but no pics. I have also heard talk of a replacement for the Rock 7, but that was a couple of years ago. The table itself has been in and out of production a LOT of times over the past 30 or so years. For those who are unfamiliar with the Rock, it is intrinsically unusable with linear tracking arms, owing to the arms’ front-end damping trough, which mandates a pivoted arm.