I own a couple of sets of Don Hutchinson- drawn plans for Warbird type planes. I consider them works of art, done by a Master. He draws them them the "old-fashioned" way, no CAD stuff, just pen, pencil, ruler, and French curves. When he designs something a little different, like the articulated flaps on the Corsair, he builds a working mockup to insure the design works. if it is on the plans, he knows it works.
Even if you don't use them to construct a plane with, you'll be glad you got them....I sure am.
dg