Are there any restrictions on selling an instrument I build if I buy one of your how to plans? I started creating my own instrument based on a few websites by DIY folks, so I'm completely winging it, but I like what I'm doing so much, I think I'm going to try to build and sell instruments as a business. I would like to buy one of your books, but I'm worried that in your purchase process I might have to sign away my rights to build and sell instruments and I don't want to do that. What i'm building would largely be my own design, but I could really use some help from someone who has done it before, thus I want to buy your book.