I had the s/n 2020 from 1988 to 2013 on the Reference s/n 2069, never ever a problem, never a broken cantilever.
Of course, as any high performance audio item it had to be optimazed. Problem was Goldmund's greed for cosmetics over technical matter. The problem is so easy to see and yet no user or seller has ever talked about the issue.
Some idio... inside Goldmund decided to place the CW too close to the bearings to keep it hided inside the bridge.
Thus the arm/CW, as such, had no leverage at all. Consequently CW mass must be increased to a crazy 200gr for a 10gr cartridge. This is already a compromise for a pivoted arm but is catastrophic for a tangential. The aluminum/ceramic strip headshell did not help either. What I did, I first replaced the aluminum headshell for a CNC strip made of treated ebony, this reduced the mass at the very tip of the arm by 5gr. Then the most important, I CNC a hard-resin prolongation-insert that was attached to the back of the arm that allowed to set a lighter CW farther away of the bearings. The result is the use of a CW of only 45gr., the option to use the level of damping fluid you wish and a terrific, amazing improve in performance.
I do not know how to upload pictures but I can provide tech. drawings if someone is interested.
You can go to Hammertone Audio (turntable section) to see some pics/explanation. That is (was) my system. Additionally Mr. A. Salvatore understood the problem and posted my explanation in his web-site.
IMO none of the fellows that have always criticized this arm have a tonearm better than a poperly set-up T3F.
To be noted this arm as today has little tech. support and if something happens to the E-Prom or the Zilog CPU it will be difficult to fix.
Regards,