I may be missing something, but I ordered the chopped Tour Pak for my '09 SERG along with the four point docking brackets. I bought the two-up rack for the chopped Tour Pak.
When I installed everything my two-up rack with the large flat chrome top nested in the indentation of the bottom of the Tour Pak, not on the ridge. Maybe there was supposed to be a "U" shaped adapter between the two, but I just redrilled new holes in the bottom metal of the Tour Pak liner and mounted my Tour Pak back as far as I wanted.
There was nothing there to stop me from moving it back another couple inches if I had wanted to.
Did I not get all the mounting brackets to mount the Tour Pak when I bought everything?
If someone wants pictures, I have the Tour Pak off right now and can show you all what I have or at least how I did mine.
Let me know.