FWIW, NAPA has gotten into selling junk in a big way.

I did read your last post where you say you sanded down the shoes and things seem better. Glad that helped, I've done it myself. But the problem will likely come back. When it does, replace the shoes with something decent.

Turning drums and rotors is generally a bad idea. It's a short-term band-aid. When you do this not only do you make things thin but you make the metal thickness uneven, which tends to lead to interesting results of the unpleasant variety. I'd suggest replacing the drums with new ones.