YES! Finally somebody who grapples hits up this thread.
I don't wholly agree with your thoughts about half-guard though, since I think it can be a very offensive position where your opponent is forced to make a move. There are a lot of options from there, not even counting if you're looking to dive into deep half or half-guard with a butterfly hook. I like the Elevator sweep due to its simplicity but it can be tough to hit on anybody remotely experienced. After white belt it feels like you can get there, but need to use that position to set up another sweep.
Always willing to trade, deal or haggle for something. Bring me some offers and we can get down to business!