I have made 2 of these figured redwood guitars. I would never use figured redwood without making a double top. Some do and get great results, so it can be done, all I am saying is that I will not do that.
I laminate the redwood to some very stiff Lutz spruce using West System 105 epoxy. I build to a stiffness rather than a thickness. These 2 baritone guitars ended up at about 0.085" thick. They were not too stiff and they felt a lot like a regular spruce top. I applied just enough epoxy to each side to wet them (to keep weight down) and left a little extra epoxy under the bridge.
I got the idea when I was looking at an older Washburn dread that I had. It had something that looked like thin Formica sheet laminated to spruce and the darn thin sounded pretty good. I figured if the could do that good with that combination, that I could do better using good wood and modern bracing/voicing.
Yes - not as fancy as using a honey come space age material or some fabrication of a hallow matrix of balsa, but it did work well. I think they sound pretty goodtoo - but you be the judge -
http://www.youtube.com/watch?v=zwXAm_cUh4g
http://www.youtube.com/watch?v=pf3al9R_Nlk
