[strat61caster]

Normal wear, first 20-40 runs look awful but then they stabilize and are in it for the long haul. Between my dad and myself we've been through 7 sets of RE71Rs iirc. We typically see 130-140 quick runs out of them but in ST trim we've had over -3 degrees of camber, in Street I'd expect closer to 100 runs, maybe less on abrasive concrete, could be way more on smooth low wear asphalt.

Autox courses seem to end up clockwise or counter clockwise, the outside front tire for the most sweepers where you were pushing is likely the most worn. Turning and braking action accelerates the center rib wear, I usually chew up fronts harder than rears so every event the better tires go up front.

STX pressures with camber should be around 29psi hot, Street a little higher due to lack of camber and pinching the 225 onto the 7", I'd guess 32 psi or so.