Since I wasn't physically present when the test came through, I had to pull up our automatic audio logging, and there it was. :) I compared it against the Sage unit log.
It although all were only seconds apart, the box only re-transmitted the first it received. We received that first test from WDRC, our 2'nd monitor station. The audio played back included the internally generated 2-tone signal, followed by the recorded 2-tone. (So we aired two, 2-tone signals back-to-back). The message was only slightly distorted, but fully intelligible. The next received "Duplicate" was from WTIC, our 1'st monitor station. Finally, the next duplicate was the CAP feed.
The total on-air interruption was only 59 seconds. Not bad. :)
I'd say it went well for us. :)