At long last, I got my alignment checked and reset today (was waiting for completion of tranny swap, half-axel replacement, and final wheel size and tire choice).
Went for zero toe all around, despite fact that slightly negative might be best on rear when under power. I do a lot of coasting.
I have no idea how to judge any benefit, but the car felt great while driving home. And I learned that the bushings at the rear are wearing-out and that the right rear camber control arm needs replacing.
Coast 60$ but I had probably never had alignment adjusted before... this is mostly maintaining the car and getting a mod in for free.