John, EHL is full-film (elasto-hydrodynamic lubrication). Specifically, the type of film formed in a journal bearing where the shaft floats on a cushion of oil. Ring-to-cylinder, valve train and similar applications with the possibility of metal-to-metal contact are examples of boundary lubrication.
That said - there are too many variables here to make direct correlations. At a given flow rate, you can have a high oil pressure while using a low-viscosity oi because of a restriction or you can have high oil pressure with no restriction with a higher viscosity oil.
The first step in figuring out what data means is figuring out what it DOESN'T mean. Sometimes "I don't know" is the smartest answer.