legrandefromage":1k17bx0e said:Undo the main bb cartridge, tighten that cup until flush with frame, then put the main bb bit back in and tighten until super tight. Bolting the tool to the BB often helps but dont go too mad, the threads can strip. The main body of the BB will sit inside the cup and compress it a bit so it doesnt have the chance to move about.
BB's in alu frames often creak a bit after a few weeks riding so expect to get back in there with tools to re-tighten.
Some advise copperslip, others grease, I use a light oil.
That helped. Now there's a tiny gap on the drive side, I'd say less than 1mm, but the cup on the left is flush, so overall - much better!
I used anti-seize paste which certainly added some resistance.