Hi Mark.What happened with Cat.What didn't they likeIJHave read mosts magazine articles.Didn't know you had a book,where can i get itIJ Do you still have 1 bi-rotor yourself to runIJI was disappointed when your combine was dry-shelfed,figure you wanted to see it along highways at harvest time,I assume your dream and to show a farmer could build a better mouse trap than college educated engineer with the big boys. Don' figure you sold justs for the $.Figure to see you in mags again.Good luck Richard