Hi,
Thanks for the response.

I ended up trying it on one extension with the wiring reversed. It worked just fine. I played with it quit a bit, and it doesn't seem to be polarity sensitive for the data wires at all.

You can have any combination of correct and "incorrect" wiring, and the CCU seems to be able to match it just fine.

Anyway, just thought I'd post that for future reference.

How much easier can you get then that?