Dave, I have a booklet on proper paper patching of bullets written by Orville Loumer that is really good. Shiloh used to carry it in stock for $7, but I can't seem to find it now. If you don't have one, you are interested and Shiloh dropped it from their website; I'll be glad to photocopy mine and drop it in the mailbags to you.
It is a good read, and has a good number of helpful tips on precision paper patching. It certainly was a good start for me.