Well… once again, the calculator was right.
2.5 mcg P80 did not have a very obvious effect on me, but I did notice it slightly. Most of the day we were outside at the beach or in my car with the windows rolled down. Then we had dinner together and came back here to watch a movie. She was already favorably disposed to sex, so I suspect that the 2.5 was the most I could have worn without actually turning her off. But… we did what the calculator said we would do if I put on 2.5 mcg.
I am thinking I need to test it at higher doses to see what happens, but that 2.5 was the recommended dose with her suggests that P80 may be too aggressive for her… or maybe aggressive in the wrong ways.