I am considering getting Directv. I see in my neighborhood that some new residents are getting the more compact dish with the combination LNB for positions 99, 101 and 103 while other new customers still get the larger dish with room for 5 LNBs although only 3 are mounted. Since the dish would need to be mounted just by my front door, I would certainly prefer the more compact design. Is this matter of programming requested or just what the installer happens to have on hand? Is there a way to request a particular dish if ordering through the web site? This information would be appreciated in making a decision.