@vortrex and @testpilot Thanks a lot for sharing your experience with emailing Bob Graham - I will try it both ways and thanks for the current mail adress - I got a different one that did not work at all.
@mulveling - unfortunately the distributor in Austria is also the owner of Project and EAT turntables and has shifted his focus more towards his own products over the past 5-10 years - it seems so at least to me ...he is said to be Ortofon's largest worldwide customer, so they do not have much experience with customers with Koetsu cartridges and Graham arms......and for a consumer it's extremely difficult to get in touch with them directly (similar situation).
Anyway thanks very much for your proposals and recommendations in this matter!
@mulveling - unfortunately the distributor in Austria is also the owner of Project and EAT turntables and has shifted his focus more towards his own products over the past 5-10 years - it seems so at least to me ...he is said to be Ortofon's largest worldwide customer, so they do not have much experience with customers with Koetsu cartridges and Graham arms......and for a consumer it's extremely difficult to get in touch with them directly (similar situation).
Anyway thanks very much for your proposals and recommendations in this matter!