Yes, this is a question but it is also somewhat of a rant (of sorts.) Bachmann has been producing locomotives in 1:20.3 scale for over 10 years now. They have come out with some very nice rolling stock in 1:20.3 (Fn3) but until the K-27 was released the coupler height on the Fn3 engines would not mate with the Fn3 rolling stock! Some of this was understandable as the engines came first so it made sense to have them mate with the 1:22.5 truck mounted couplers (yes, I know they're called gladhands) but now that there is plenty of choices of Fn3 rolling stock one would think that Bachmann would make provisions for adaptors and they have........sort of!
Bachmann (in what I consider typical *ss backwards fashion) devised a coupler to be body mounted to Fn3 cars that is off-set so it will line up with the truck mounted couplers of the earlier 1:22.5 rolling stock. While this "solution" works one way it doesn't address the issue of mating body mount to body mount! Once a body mounted coupler with an off-set coupler installed it is then only good for coupling to truck mounted cars or engines with that height! Again, it is a solution but only a partial one! What about mating Fn3 rolling stock to a Spectrum Porter? NO provision was made for proper coupler height!! What about our Annies? Bachmann keeps telling us that these can represent smaller "catalog" locomotives in 1:20.3! Their answer seems to be "Use the off-set coupler if you want to run our Spectrum freight cars."
I find the whole situation unacceptable! I am told that Kadee couplers will work when body mounted but I don't like Kadees! Plus, this is a permanent solution whereas I may want the ability to change back! The only thing that would seem to make sense is to have an off-set adaptor that off-sets up to the correct body mounted height that could then be attached to locomotives! Bachmann, however, has dismissed this idea which brings us to the Connie.....
The Connie has a body mounted coupler! The coupler is off-set. I haven't tried it yet but if you take a straight coupler and replace the off-set one, will it mate up properly? I DON'T want to make a lot of changes! (I will if I have to but would prefer not to!) Any experience with this would be appreciated.