One thing I don't get about Anubis. He was "1/2" ascended and the others allowed to do only the things he could've done as a regular goa'uld, right? Well, when he discovered the ancient dna device he used on Khalek, why didn't he descend himself and use it on himself. That way he could've fully ascended without the help of Oma and apparently the others would've have stopped him. They themselves used a similar machine on Atlantis to ascend after all. Plus they didn't interfere with his plans with Khalek after all, so it makes more sense that he would've used it on himself.