Sorry Jake but I'm not with you on this one.Crank walk is caused by improperly installed thrust bearings, not the clutch. I have been running my dkm MS twin disk for over 37,000 of my total 86,000 miles with zero issues.
The force to overcome the pressure plate is against the thrust bearing, one small 180 degree washer, essentially, holding 2500+ lbs of force. The heavier the pressure plate the more stress on the bearing. This is reinforced by the much lower failure rate of cars running stock clutches.
I also don't know how you would install them wrong. The clearance is so tight I don't see a way that the assembly would fit together if they aren't in the right spot. We're talking a couple thousandths of an inch. After they wear they can fall out of place, but this is an effect and not a cause.