Oh come now 130cfm > 110cfm the difference in flow is bigger than it looks. Also I would imagine that CM fans(rebranded Antec fans) probably suffer the same exaggeration that Antec fans do. -10cfm from each and you'll probably near dead on their actual CFM rating. I can't say this with 100% certainty but it seems that every manufacturer of every computer part made, posts exaggerated paper stats so they can compete on a level playing field with their competitors.
I don't care so long as the parts work, I didn't pay more for less(performancewise) and I'm not being taken by some flybynight company that doesn't care about customer satisfaction.
Unless you have the appropriate testing devices(paper tests aren't a scientifically proven testing method) there is no way to measure the difference between one fan that is rated < 20cfm of the other. I'm not meaning to offend, I'm just pointing out the obvious cracks in the statement.
I'm all for going with the BigBoy since its the same footprint and gives a better level of performance over the CM branded version. But please keep in mind all of the issues involved.
Btw... would love to have my thoughts confirmed with some good old fashioned pictures. Comparing one fan to the other. I'm pretty sure my suspicions would be proven correct. If it's not a rebranded it's likely the same company manufacturing one manufactures the other.