I installed EBC red pads and stoptech slotted rotors a few thousand miles ago. This is what the wear looks like now, and I'm noticing the outer edge of the rotor has some grooves on it.
Is this okay wear?

 

That third picture looks pretty bad. I'd take apart the brake son that corner and make sure nothing is jammed between the pad and the rotor, and that the caliper can float accordingly.

 

Took that caliper apart today and didn't notice anything strange. I cleaned it all up and re-greased it, so I guess I'll keep an eye on it to see if anything changes.