Regards, anxious ones: Three ATN155LC styli here. One unmarked, one with the notorious blue dot, another with a black dot. Also a SN (Signet) TK7LCa, unmarked. The significance of those markings may relate to production schedules, assembly station or inspection. Among other possibilities, who other than AT can say for certain?
Of the four cantilevers, all are ground at an angle at the stylus interface, equal length and of a diameter slightly greater than the "V Magnets". A quick look at the end should show a solid rod, not a pipe. Beryllium's color is close to polished steel, a slight grey"ish" cast. Boron tends towards a bronze. The stylus in question should be exceptionally clear, jewel quality and nude mounted. Even at 10X, the radical cuts to the face of the stylus should be evident, as well as the high level of polish.
Purchased over a span of four years the three ATN155LCs as well as the OEM Signet have the compliance screw set with a white sealant. I've seen AT compliance screws set with yellow, blue, red, green, black and clear. It's unlikely any meddling with the cantilever would be undetectable.
I've patronized TTN for years. All examples have been exactly as described. In one transaction excessive sealant on an ATN15Xe prevented the assembly from seating in the cart, distortion was evident. Emails were exchanged. Once "Steve" (IIRC) concluded there was no intent to perpetrate a scam it was agreed the excess could be removed without compromising return privileges, he offered to send his last example immediately. At that point, five seconds with a hobby knife and the issue was resolved.
Indianrider, I see nothing errant about the TTN reference to the beryllium cantilevered ATN155LC, shown now as obsolete (unavailable). The last time I checked StereoNeedles did still offer the OEM assembly. Due to personal preferences I'll do business elsewhere.
No associations with TTN other than confidence, caveat emptor is always good advise.
Peace,