Thanks man, yes, I am, and you can't imagine how much comments like yours help! It's painful, yes. You've done it too? If so link me to it, I am interested. Also, if you ever have the time to read more of the book and want to let me know more weaknesses of it, I am all ears. It's not nice when someone criticizes your work, but it's necessary. My work is not perfect but can be better with feedback like yours, if I am willing to leave my ego aside and listen.