I recently purchased a set of the Premier F3s (powered A, unpowered B and unpowered A) form the 2020 catalog. The tethers are gone (yea!) but the unpowered A has manual light controls and a (manually) operated coupler. I was a little disappointed at first with the limited functionality of the unpowered A, but it is growing on me.
Anyone know of a part number for a manual coupler to "upgrade" one of the couplers on the B unit to be operating? A lot of the roads operated A-B pairs and I like the look. The part number of the B unit is 20-21453-3 but I think it would be applicable to any of the recently (2020 catalog) releases.
