I just don't see JEFF as a part of the plan either, other than a plan to get his Arse moving off the ask!!! It's time to move now! Come on UC, time for Da Bomb!
I can think of no reason why JEFF would short CMKX naked from a proprietary account at this time. (Or, frankly, at any other time.) I'd say he is, and has been, selling for a client.
The question is: who's that client?
JEFF just seems ruthless in his selling and selling and selling. Almost like he wants to make us hurt.