I agree that there are plenty of benifits to intermeshing blades, but i am a bit concerned about the interest of applying it to a small home built. I supose that if it were built professionaly, and maintained by someone who looks after things, it would be just fine, but the home built market doesn't have everyone with that mindset. I would hate to see a good idea lost to a couple of preventable accidents. Ever hear about the parasol wing?