I compared the Walker to the Studio with T3F arm (same arm as on the ref). The ref was not a big seller so I don't know if you'll get an exact response. The Walker is more accurate and ss like, while the Goldmund is more romantic sounding. Short of writing a vintage capsule review I would go with the one that mimics your tastes. Romance vs. accuracy, tubes vs. SS. One of my 5 set-ups is a slightly romantic table with a very accurate cartridge. I enjoy this combo very much.
Peter
Peter