Wow, great post. I just read the whole thing, and my head is just about bursting with new information! This is definently one for the Favorites list.
Oh, and I have one question. I know, I should already know this, but I don't. Due to Enhancement Diversification, you say that anything > a 60% buff (dealing with defense/resistance/ToHit, anyway) will result in reduced effectiveness. Well, three SOs will get you over 60%. If you slotted say, six TOs in a defensive toggle, would each TO still offer the same (or close to the same, because I imagine that six TOs would just about hit you at 40%) benefit because you're still below 60%?