General question about offset

[sheetsofsound]

I am wondering what the effect would be if the rear offset were slightly different from the front. More specifically, I am changing the front to +35mm offset due to a different brake set up. If the rear offset remains at +25mm, what would be the result?

[FI Spyder]

Not sure but the rears are further apart than the fronts at stock so this might bring it pretty close to equal.