Hey guys, this is a simple one I'm sure has been debated many times here. But I can't find much information on it anymore due to brushed motors not being used that often. I have forgotten pretty much everything I used to know involving them as well, which doesn't help

Anyways, I have 2 rebuildable brushed motors for my Revo and for my Lunchbox. One is an Orion Method Pro 15x2, and the other is a relic of the past, an Integy Matrix V10 Twin Turbo 27T. I have not used the Integy yet (Still NIB), but have ran the Orion a few times after break in. I'm now looking into getting some brushes for these motors soon. The Orion brushes look good yet, but I'm sure they won't last long. I want brushes that are easy on the comms, especially for the Integy as I'd like to keep it in good shape. What compound and brand would be good for these? Iirc, pure copper soft brushes were what I used to run in mod motors to keep the comm in good shape, but it's been so long I'm just not sure.