I have some of his books. I have built the "Sonic MA1" from the first book. I've built it several times and modified it a bit to get a tone I like. The 50L6 power tube it uses is a cool sounding tube.
I haven't built anything else from his books. I want to, I just haven't found the time. Volume 1 is all true point-to-point while volume 2 uses eyelet boards for the layouts.
How did your champ turn out?