You made note of the Crosswind somewhere before - I can't recall if it was this thread or elsewhere but I remember you commented about the Crosswind and Air gap being close to equal. I've only used one that was not equal in performance (economy and "butt dyno" power suffered) and will avoid them now for a bunch of reasons.
Do you recall the setup that lost power as a result of port matching? Was it a problem with the matched intake and anotehr substituted that made more power? Was matched vs non-matched a planned test I guess is my question?