I'll have to admit I don't remember the specifics, but I'm sure that's the right answer -- not that it's exactly the same, but you wouldn't mix your mains would you?
And I'm pretty against the mid-bass module -- just seems to me that it introduces another crossover into the equation making it even more difficult to get it right.
So, like Sheep said, get another one exactly the same and play around with placement.
JCD