Not to hijack the thread, but I think it speaks volumes about WarbonnetGuy that he is willing to provide constructive feedback on a thread about reverse engineering and copying his product.
Not all manufacturers are so insightful to realize that grassroots passion for their product is a good thing.
After taking a crack at copying his design, I can say that, for me, it would have been FAR more efficient to have just ordered one from him. I'm not in this for efficiency though. I like the challenge of seeing if I can make something myself, and the reward of using something I made.
However, I'll enthusiastically recommend WB products, in part based on his approach to the community.