staggered tire on same size wheels?

[tramp_drift240]

s13 coupe. 18x9.5 +12 all four corners.

at first i was thinking 225/40/18 all around, but im not sure if i really want that small of a tire on the rear. dont ask why, its just some weird gut feeling that i want something thicker.

so would 225/40 on the front, and a 235/40 on the rear work fine?

i saw on that RIMTUCK site, that white hatch with kouki tails, and the green te37s. theyve got a 235/40 on the rear, but its a 10.5 wide.

would the stretch difference between a 225/40 and a 235/40 be different enough to make it look weird?

[AZ89two4Tsx]

Why not just compromise and make all four the same so you can rotate your tires?

[tramp_drift240]

also what i was thinking. but im planning on keeping stock quarters/fenders.

and im not sure i can run a 235/40 on the front and have the ride height i want.