HPS or HP+ for street/autox driving?

[Terry Kennedy]

Wreck a brake pad by dropping it 12 inches onto a floor? Not something I'm too worried about. I'd better not show you what the rest of the car often endures.

I've heard reports (other cars, not specifically about the Atom) of the pad material block separating from the backing plate, as well as chunks being knocked off the edges of pads, which could lead to uneven rotor wear when re-installed.

[bolus]

I took an angle grinder to my Alcon pads (a small lip was hanging over the edge of the rotor)

[Positron]

I took an angle grinder to my Alcon pads (a small lip was hanging over the edge of the rotor)

Pads are pretty soft, I use a coarse bastard file to remove that lip and leave a small bevel. Keeps them from squealing so much particularly on the leading edge.

Also as part of my after track event inspection I flip inboard/outboard to help them wear evenly otherwise they can cant in the caliper.

[Terry Kennedy]

I took an angle grinder to my Alcon pads (a small lip was hanging over the edge of the rotor)

I'm not sure if the standard 1203 pads our 4-pot Alcon pads are derived from have leading/trailing bevels. On the Atom, those pads are cut down to 15.5mm and are cut flat. Andreas at Pagid created a special shape number (8009) for me which had the pads at 15.5 already, but any time I've purchased pads (starting with the HRP group buy I set up years ago), it was faster / cheaper for HRP to cut down 1203 pads they had in stock by 2mm rather than special-ordering the 8009's.