@handymann
That is the word about the Urushi. But then it seems Koetsu owners can use them on a SME V with excellent results. And that arm is 10/11 grams in mass. Decidedly in the medium mass camp, right there with a Rega 303. The Zupreme head shell i use on the Acos has more mass than a V. So that must not be an over riding factor in getting the cartridge to perform properly, although having it on a 5 gram arm could certainly be an issue.
That is the word about the Urushi. But then it seems Koetsu owners can use them on a SME V with excellent results. And that arm is 10/11 grams in mass. Decidedly in the medium mass camp, right there with a Rega 303. The Zupreme head shell i use on the Acos has more mass than a V. So that must not be an over riding factor in getting the cartridge to perform properly, although having it on a 5 gram arm could certainly be an issue.