From what I understand of it, the track-loc basically causes the outer wheel in a turn to drag along untill it overcomes the clutch friction, the clutches then start to slip, and this allows the outer wheel to rotate at a different rate. Until the clutch starts to slip, aren't you essentially skidding the outer tire through the turn? So, if you make the clutch pressure greater, won't it cause the outer tire to skid more and wear out even faster?
Well, since you turn in both directions, it would alternate with the net result being increased rear tire wear. However, since a good owner has their tires rotated regularly from front/back, it would seem that overall tire wear would increase. I'd be curious as to just how many more miles you'd get out of a set of tires w/o the track-lock?
To me, if you can do a burn out on both tires, those clutches are providing a heck of a lot of grab in fact, more grab than the tire-to-road. Is there something else going on that counters this?