I've mentioned several of the sample T6 portfolios that are post in the User Reference section.
This is the beta neutral model with a top 6 (all in) sort.
We should expect that the results would approximate a straight line since we have created a situation where volatility is (hypothetically) close to zero. In fact, we see that market technicals began to deteriorate around May 15th...supporting the argument for cash....and that trend continues through the present.
In this case we use the model not as an investment model but as an indicator of market stability.
Using the market neutral model produces almost identical results so the P6/RSQ cross should have been detected regardless of the model examined.