Couple thoughts.
Seems the writers always give us a hints and clues about what is or what had happened and have been very good about providing the right details after the fact…but I find it
unreasonable to assume Gus knew about the Ricin…how could he…Gus and us were never provided the slightest of hints Jesse possessed the vile in his cig. pack. Reasonably how could Gus know
Walt is compelled by detail while cooking, paying attention to every aspect of the cook. He unravels while making interactive decisions in the gray zone, that being where there is no black or white obvious answer…that said…he is compelled to use color coated binos and put his eye glasses on the top of his bald head on a sunny day on a roof top in the open…seriously?? what detailed chemist would do such a thing?
the Heisenberg hat needs to come back out of the closet. Has it shown up at all this season?
Beneke and Mike absent in the last episode…Beneke is now tied to Saul along with Skylar and 650K. Exposed now but to who?
Mike…who knows how he becomes relevant in the last episode. He is a killer and a fixer…he shows up something gets fixed or dead.