Rear tyre wear and front toe

[bathtub tom]

I put new tyres on the rear last year and after 6K miles there's already a measurable 1mm difference in tread depth between the outside edge and inside - the most wear's on the outside. The tyre pressures are regularly checked and maintained at 32-33 PSI. I certainly haven't clobbered anything and there's no adjustment (other than a damn great hammer). Anyone else experience this?

I'm having a couple of new fronts fitted later this week and the tracking checked. They've also worn more on the outside edges despite having the tracking done and toe-out added some time ago. Anyone know what the front toe should be?