I just ran a test with 35mm FP4+ with exposures 1.5 stops under. Negatives were slightly dense but with good detail in strong mid-day light. The rated ISO was best (common metering) for detail in extreme shadows while maintaining good texture in the highlights. I did overexpose a frame 1/2 stop to see my highlights and they were very acceptable and shadow detail picked up as expected. I would definetly recommend the combination at rated ISO if you like a good strong neg when in clear mid-day light.
I am wondering what kind of effect there would be when diluting the A solution 50% less.