Dear
@PeterA,
I highly doubt that the aim of the jig you’re using is true precision. In order to align a cartridge precisely with these kinds of indirect alignment devices—simply “ jigs”—everything must be perfect: precisely set, aligned, and accurately machined. But that’s almost never the case. These tools are designed for convenience, not for precision.
I haven’t used the specific one you have, but there’s no need to swim in every sea to know you’ll get wet when you jump in. I’ve used the Graham jig, the incredibly well-made Thales jig, and of course the ubiquitous Technics jig, which is similar. All of these are indirect alignment tools, and none can offer the level of precision that direct alignment methods provide. A two-point protractor or an arc protractor allows for direct alignment, where you can observe the stylus following the arc and make adjustments with the cartridge mounted in the headshell and the headshell mounted on the tonearm.
You can certainly prefer the convenience of jigs over the precision of direct methods—but that’s just the reality of it.
I don’t know about DDK’s level of knowledge, but I doubt it if he presented this jig as a precision alignment tool. Repeatedly referencing him in your posts doesn’t help to convince me otherwise.
