Just a quick update and thanks to all who responded RE: question about wife's seat troubles. I adjusted her seat back about 1", with same very slight forward tilt (nose down).
We finally got out between rain showers for a quick 10 mile flat surface ride, and she did not have any of the same issues she was having. Said she felt good afterwards, which she could NOT have said before.
I think with her longer legs, she must have been sitting weird due to being a little too far forward. I asked if she had any extra pressure on her arms/shoulders from the revised position, and she said no.
For now all seems good, but if she starts having any pain again I'll drop the dough and take her and her bike in for a professional to fit her.