Even though it's an anti-static brush, the static generated by brushing has to go somewhere. Try two things and see if either help:
1) Ground yourself. Touch something metal with your free hand while you brush the record.
2) After brushing the record, lightly touch the brush to the tonearm at the front and back. If you get some static pops when you do this, that means that the static generated by brushing the record is being stored in the tonearm.
Hope it helps. If not, a zerostat gun is an option, too.
Tom
1) Ground yourself. Touch something metal with your free hand while you brush the record.
2) After brushing the record, lightly touch the brush to the tonearm at the front and back. If you get some static pops when you do this, that means that the static generated by brushing the record is being stored in the tonearm.
Hope it helps. If not, a zerostat gun is an option, too.
Tom