Will this subject every get ironed out for the masses?

Get yourself some Delo 400 LE 15W40. NAPA's house brand 15W40 "diesel" oil, or Valvoline's 15W40 diesel oil is good. They are all CJ-4 with plenty of zinc (1300 plus ppm) for stock to mild builds. In fact, many of the racers run the 15W40 diesel oils. Plenty of zppd (zinc) for ya, at least 1300 ppm.

The synthetic diesel (also called heavy duty engine oil HDEO) has more zinc than the dino oils.

Shell Rotella T 15W40 has just under 1200 ppm zinc. Shell Rotella T 5W40 synthetic has over 1300 ppm zinc.

Do a search. This subject has been covered real well.