I have noted that Hornby decoders have a default CV29 direction of operation set as "Reversed" and Bachmann appear to have their direction of operation set as "Normal". Which is right for Britain given that the British (and Irish?) drive on the left hand side and everybody else drives on the right.
On the other hand I guess it doesn't matter as if you are operating a layout without a turntable you want locos to go from right to left to right again in the direction of the console arrow and they can be doing this when facing forwards or backwards. Being able to set up the direction of operation of the loco to match the direction of the arrow on the console without having to rewire is clearly a DCC advantage.
Happy modelling
Gary
On the other hand I guess it doesn't matter as if you are operating a layout without a turntable you want locos to go from right to left to right again in the direction of the console arrow and they can be doing this when facing forwards or backwards. Being able to set up the direction of operation of the loco to match the direction of the arrow on the console without having to rewire is clearly a DCC advantage.
Happy modelling
Gary