Curious as to possible cause of this problem, NSF tyre is wearing faster than the OSF, but it is completely even wear across the tyre. It does have a somewhat "scrubbed" look compared to the other one (the rubber on the other one looks smoother) but the inside and outside edges are not scrubbed out like you'd usually see with a problem.
Wondering whether it's the car or the tyre*? Handling is fine...
Focus 1.8, Continental premium contact 2 both fitted at the same time, balanced etc and pressures checked regularly. The NSF is almost down to the twi, the OSF is about 1 to 1.5mm above the twi on just under 6k of normal, mostly town/country driving.
I have read that this car/tyre combo is heavy on wear, along with heavy front pad wear, but even without the mismatch this seems excessive? The rears are fine, of course. 12K and still lots of wear left.
*Clearly needs to be changed soon anyway so wasn't really up for swapping them about, but I suppose I could if it proves a point...