I seem to remember someone building and posting a fully functionall ALL WOOD COMPOUND on this website. While it was universally panned as an unrealistic attempt at improving primitive archery, everyone complimented him on workmanship and a seriously bent sense of humor!
The OP here sounds like he is looking to do some serious experimentation. Not my cup of chickory, but I'd definitely read posts of his results with interest.
Hartknifemaker, I don't think the guys were taking a poke at you, but we sometimes let ourselves get a little out of hand having a little fun. I know, because I am probably the worst one for it in here. Stick around and take your fair share of potshots at the rest of us.