>Shift 0.4 msec LEFT
>Mark, what does this mean?

It means "shift the sound .4 milli-seconds to the left.
So, the sound centre will appear to move left.

Got a better wording for that line for me? I found the original incarnation incomprehensible (to me), so I just threw that in quickly before release.

Actually, I think the next step is to use a slider (similar to LR balance), and dispense with the numbers entirely.

Cheers