Curious, what type of carbon rim were you using where you've had this issue, and what type of pads?
Pat, a bigger issue is going to be finding the happy medium in your pad/caliper adjustment. Tubulars, especially carbon tubulars, tend to be quite a bit different in width and braking surface location than aluminum clinchers. If you're in an event where you might be swapping wheels out from either nuetral support or your own wheels in the wheel pit, make sure to:
a) Allow enough adjustment in the barrel adjuster to open/close up the caliper as needed and
b) Adjust the pad on the side of caution, so that the pad will not contact the tire sidewall.