[s-cars] How Much Caliper Clearance?

[calvinlc at earthlink.net]

Question for everybody.  I am putting winter wheels on my '01 S4 which has
the Stoptech 332mm brakes.  I have been running 18's but my winters are only
17's.  There is approximately 0.1 inches of clearance at the tightest point
between the wheel and the caliper.  is it OK to run this little bit of
clearance?  I know the relative clearances should not change, but do I have
to have a minimum gap for snow and the like?  Thanks!

--Calvin