On Tue, 14 Mar 2006 01:48:31 GMT, "George E. Cawthon"
wrote:

Won't work were I live cause the 3/8" ply won't
be. But your point is good. Ripping a 3/8"
spacer would save a lot of work and make the cuts
repeatable.

It isn't like you can't make your own 3/8" spacer though. Set your
fence for 3/8", cut some scrap, clamp it to your fence. Ten seconds
work.