Last Wednesday I called RCBS customer service to order six parts that I needed to repair my old LAM. As posted before on the forum there is no charge and I got the parts on Monday. Wow I put them in the exceptional service class with Swede at NOE and Dillon. My experiences with other vendors have not been anywhere near these three. I have not tried Redding but have experienced OK service from Lee, Lyman, will avoid them except for MDies, and will avoid Hornady.
I expect there are other great companies but have not had experiences them.
I did not mention Midway, Grafs an Sons and Brownells as all three also have exceptional customer service.