The Four-Ball is run in a lot of different configurations, depending on the product and its intended service. The wear version for fluids - D4172 - has a couple of different allowable variants. It's a lot more applicable to ball or roller bearings than to the plain bearings usually found in automotive engines. Then you've got the EP-version that is more applicable to EP gear oils. There are also grease versions of both.
The most important thing to know about the Four-Ball is that it is a screener with very high inherent variability. When embarking on a formulation program, it will help you to weed out the losers. It will NOT help you pick a winner.
As such, any marketing effort that relies on the Four-Ball is inherently suspect.