Dominic, you can disregard ED's negative, vitriolic posts. This is the same Mr ED Subcretin who infects the xxxxx board. I read your post about the exhaust cleaning from Hell - sounds typical to me. We have seen many such in your area. We charge more and put on a schedule. In the alternative they can have Mr ED S come do it - we will abort the job if it is again neglected. Sounds like we have some of the same interests in Colorado - gimme an email sometime.