Bad idea? Run two Y motors off same input (3-axis TB6560)

This is most likely a terrible idea, but I was wondering what the thoughts were about running two Y motors off the same Y input? I have bipolar steppers, and I can swap two wires to get the second motor to run opposite. My board is the TB6560.
Thanks!
Kim

EDIT: Disregard, I see a thread about a similar topic below this one.