I have a couple of questions and I would like to apologize for the lenght up front. 1) I asked for pointing information for the AT9 a week or so ago with my zip being 47468. Someone was kind enough to give me these coordinates. Elev: 42, Tilt: 72, Az: 206 But if I go to http://www.emantechnology.com/lookangle.asp and put my zip in for the 101 sat (this is the sat I need to center on. I get these coordinates. Elev: 41.1, Tilt: 17.1, Az: 203.8. I'm not too worried about the elev or Az, but there is a big difference in tilt. I do not have an H20 to look these up my self. Which is correct? the website or the ones given to me here? 2) Someone recommended the mono-pole for support even if you mounting on the roof? Is this required or just recommended? 3) Almost forgot.. If I happened to walk into Bestbuy would I be able to call up my coordinates on an H20 they have set up.. Would/should someone at Bestbuy be able to do this for me? Thanks Greg.