Oops, must have hit the wrong key and posted my reply to Cristo before I was finished. Bummer. I meant to ask how can you say that? There could be huge voids out there right next to our OU, or very, very high density areas either of which could have some effect on our OU. Wouldn't it be at least worthwhile to assume a very dense area and see how this might effect our OU. I'm sure that this has been done. Do you know what the outcome indicated?