Tom said to note that, upon tear-down of configuration #1 (wide array), the pressure ports appeared to swivel a bit on the 1/4" bolt securing them to the booms. Thus, the separation vector between the ports and sonic arrays could be different. The bolts were tightened by inserting a washer in configuration #2.
(comment entered by Steve Oncley, but page was logged in as Gordon -- now I know better...)