Nice post. And nice thread - I read it almost entirely. I could find many contrasting opinions here: each pov has some strenght and some quirks.
My own personal opinion? Well, we'll have to (wait and) see. All in all a change, and an "upwards" extension was needed. My overall impression is that there may have been a more accurate choice of the level names and maybe it's just me but I don't like the somewhat erratic nature of deltas.
What the $#%@ is a Sexton, anyway?
Most importantly, you don't answer the question you ask yourself... oh, never mind!