Andy,
I was working on my "port" of a user SPMBT 3 campaign, and was trying to do as you suggested in my other thread, that is to check the OBs... But I'm not the designer of the campaign, I only have the campaign files themselves.
Anyway the port works fine "as is", just copying the files in the proper folders, the campaign also had custom OBs that are now a breeze to use
BTW what means "UC" ?