I wondered how Lionel would lash these units up for the purpose of coordinating the electrocouplers. I expected an electrocouipler off switch in the A unit so that only the B unit would detach cars. But to my surprise, and wonderment, uselessly only the B unit has the off switch and for what? So instead of being able to designate both units as the same engine number and saving a Legacy 2 digit designation, as Lionel normally does with Legacy AA units, you must give each unit an engine number and create a train lashup for the electrocouplers to work properly. Seems like they might have known over at the blue and orange.
And also what is never metioned in the operating manual and for what purpose does each unit have a hatch open over the smoke units? There are no settings to access there. And the operating manual illustrates the settings switches under the wrong location in the B unit. This is all small stuff but these are not kids toys. So like the NPC SBL Yueltide car these are adult collectables for good money so why are errors like these tolerated?