In hopes of improving tire life, I would like to "de-tune" the rear wheel alignment a bit. I think I want to take the Camber down to +0.5 degree and the Toe-in to 0 degrees. I have these questions:
1. why or why not do this?
2. If I do, what's the right, corresponding Caster setting? (OEM is 5.75-6.25 degrees)

 

The thing I recommend would be to run Honda's lowest recommended toe in setting for the rear. If you are gettin uneven wear on the inside rear then less negative camber.

Jim