Richard, I don't know how you do it. But you always get this right.

Here is my setup:

Left TriggerA = D13
Left Triger B = D12
Right Trigger A = D10
Right Trigger B =D11

With this setup,

When I hit Forward, it goes Right.
When I hit Reverse, it goes Left.
When I hit Left, it goes Reverse.
When I hit Right, it goes Left.

Help!