curious one i am confused about..

[soo6059]

ok i have the cp Mactier sub..i do the bcr activity and once i couple to the cars i cannot back them up only can go forward.....any suggestions?

[derekmorton]

All of the handbrakes are on!
And it is a very heavy train.
I take the first car off and place it on track 2, then recouple and then set back to place the car on track 3.