That thread is skeptical of the whole being against rush shipping part, and so am I. But if it's true, then just rush it to the colleges that accept it, and ship it regularly to those that don't. If I were you, I'd just rush it to all of them though.
You can retake the SATs in January so long as the scores are rushed. You should set up the rush sending before the scores are released. Penn will get the scores a bit before they are released to the test takers