ok i got my calipers taken apart. I'm about to clean them on hone them, but I have no clue about the honing kit. I went to autozone to pick up the kit and it looks like all it does is home the wall on the caliper that the piston touches. If this is the case wouldn't I have to also hone the piston wall itself? What about the surface of the piston that physically touches the brake pads? Mine looks like theres a few knicks and grooves in it, would I need to get that fixed?

Also what did you use to clean the calipers/pistons? A lot fo the stuff i've read seems to be acids which would also eat metal.