Muzcal, your problem is so unusual and specific I'd recommend contacting Bob Graham directly on this issue...
How to reduce anti-skate on Graham Phantom B44 II
I am running a Sota Saphire III and have just purchased a Graham B44 II. I have been running a Micro Acoustics 630 at its recommended tracking weight of 1.25g. The Graham seems to have way to much anti-skate even with the weight removed. Placing the stylus on a record pulls the stylus towards the outside of the record by jumping back a few grooves. And the slightest bit of dust or grit on the record causes the "locked groove" effect. Anybody know how to handle this problem?