AHA! Sorry about that - this is the second note tonight on almost the same subject.

As far as clear dope goes, the local airport is as good a place as any, most definitely. For CL equipment in general though (including SIG dope), I use RSM Distribution almost exclusively. Our LHS's around here are all "modern" and carry the modern equipment. When I mention silkspan and dope to them they look at me like I just walked out of a flying saucer or something.

Website for RSM is: http://www.rsmdistribution.com/
They're very very good.

Dave W.