I ended up replacing the clutch this weekend. The air gap on mine was WAY more than one shim out. When I installed the new clutch, there was some noise as it grabbed (the a/c hasn't worked for a year, except when I whacked the old clutch), and boom, instant a/c. I drove back from the cottage this weekend in cool comfort. Definitely worth it!

98 Silver Frost SVT 97 BMW 540I Sport, six speed "Blue is for sky, black is for soil, and white is for simplicity, purity and hope for the future" "A coveted car should never stunt your life, but should make it more rich and interesting."