I ran A1RM's twice, first time, no problems.
Second time, pulled them out after 500K's. Squeal was unbearable, and i mean - You can hear me braking 300m down the road, no matter how hot or cold they were, or what speed you are going. When we pulled them out, the amount of metal content in the pads was pretty full on.
More of a race pad, than a street/track pad. I thought I had a bad batch of pads or something.
If you want to try them, you can have my set (for $50) that are sitting here doing nothing.
I am back onto Ultimates all round now, and they feel nice, brake dust is pretty epic though.