Graham Phantom Supreme?

Dertonarm: "As I said: look careful to the off-set of the headshell mounting area. It is correct only for the original 9" version."

I think what you meant is that the offset angle at the BEARING was originally designed for a 9" armwand. Matching bearing angle to headshell offset angle is to avoid VTA affecting azimuth. I assume the Supreme's bearing was angled at 23.431°, according to spec, to match 9" wand's headshell angle. I can't imagine they would make three different bearing housings for each wand length. It's probably too minute to bother most buyers but perhaps not a perfectionist like Dertonarm. :)

______

... wonder if the new adjustable jig is configured for each tonearm length ?

No. It is only right for 9"".
When you use it for 10" or 12" the alignment is wrong, but normally you can hear that in 5s.
For these lengths you should use a seperate alignment System.

The alignment from the Phantom is pretty good. Here is a pic from the
bubble position

and the matching needle position

.

I like that fat counterweight. Looking forward to the upgrade, whenever that actually happens. I'm on the list but was told recently that it won't happen before 2012. Mr. Graham is behind, I hear.

Why would Bob Graham knowingly produce an alignment jig that is off for the 10" & 12" arms ? How much error are we talking about ? To my ears, the alignment sounds perfect...No audible distortion through the lead out groove. Too bad Graham didn't put a detent on the center of the pivot cap so that I could use my feikert. Anyone have an idea how to measure for the exact center point so that I could make my own detent ? I am going to inquire with Graham directly about this.