Is there a 3g. anti-skate weight for Graham arms?

Go the the source and ask Bob Graham. Good luck.

I have seen a professional setup of the 2.2 where the anti-skate weight was pushed all the way up to the collar (least force), and wondered why. So, I would be interested in this as well. Keep us informed.

Firstly,Bob Graham knows his products,so please don't waste your listening time with this.
Secondly,as to the "professional setup" having the antiskate all the way up the collar,for least force,I'd assume they were NOT professionals,or were compensating for problems elsewhere,in the system.Possibly the cartridge had ZERO weight(just sarcasm,sorry).

It's easy to actually check for accurate antiskate,and the Grahams can be had with a device for this.However if you follow the instructions with the arm,you should be close enough not to waste your mental energy,or time.There are,also,a myriad of test discs that allow for antiskate checking.Hunt one down,or better yet,borrow from a friend.

Best!

Sirspeedy,
Unfortunately the Graham installation instructions that come with the 2.1/2.2 do not describe how to set the antiskate. It does say that each detent on the calibrated shaft is equal to 1/2 gram, and it is clear from the design that placing the weight at the collar does not result in zero antiskate. What is the device you referred to for the Graham?

Sorry!There is no tool from Graham regarding antiskate.But,having set up Grahams,from the 1.5/2.0 to 2.2's(alot) I can state with confidence that you can dismiss any doubts as to the antiskate accuracy of these arms,relating to Graham's instructions,and how they perform in real world conditions.Unless you want to go nuts,and dismantle common sense,in order to find miniscule geometric and technical flaws,which will have no real impact on what you are hearing.Some posters like to do this.I hope you do not.You would be better served listening to your records.

Best!