From reddit:
Mr. Anderson’s recollections are adopted by the investigators for the pre-game psi numbers. His recollection that he used the Logo gauge pre-game is the premise of the investigators’ justification for League officials not reinflating Colts footballs at halftime. But his recollection of which gauge he used pre-game is rejected when assessing the psi drop for the Patriots footballs. There is no rationale for this flip-flopping on whether Mr. Anderson’s recollections were correct. And it is clear that the investigators, not happy with his recollections on this point, pushed the issue so he would state that, despite his best recollection, it was “possible” he used the other gauge. (pg. 52).
"And this is why Patriots fans are upset with the Wells Report - it contradicts itself in order to fit its conclusion.
Using ONLY the Logo Gauge, the Patriots balls were easily explained by science. They use the logo gauge for the Colts balls at halftime, but use the NON-Logo gauge for the Patriots."
"First of all, this is what should have been plastered all over news sites:
Wells alleges that the Patriots' balls were intentionally deflated by at most 0.4 psi. Nowhere close to the 2 psi drop in 11 balls that Mort originally reported. On the day after the AFCCG, if he instead wrote that league suspects that balls had lost 0.4 psi of air pressure, I think this entire issue would have quietly died.
0.4 psi is equivalent to like two pumps of air. An 8F change in temperature causes a 0.4 psi change in pressure. A tenth of a psi measurement error here, another tenth there, slight release of pressure when inserting needles, a slight change in atmospheric pressure, slight change in humidity, added wetness of the ball, Blount carrying the ball a few times, and a 2 degree change in temperature could all work together to produce a greater effect than the alleged 0.4 psi deflation.
ESPN Sport Science showed that a 2 psi drop would result in balls that compress less than a millimeter under a firm grip. In the Pats' tests, Garoppolo could not reliably distinguish between balls with a 2 psi difference, and could not even venture a guess when given balls separated by 1 psi. The alleged deflation here is an order of magnitude beneath even that. It's not humanly perceptible.
On its face, the magnitude that we're discussing is too small to draw any sort of conclusions given the volatility of environmental factors and questions about measurement accuracy.
Let's suppose I take your wallet to the bathroom and then return it to you.
"Hey, that guy robbed me!"
"Ok well how much is missing from your wallet?"
"Um I don't know, maybe a dollar, but I can't be sure. But who cares, arrest him!"
It doesn't matter how suggestive the text messages are, if you can't show with a high degree of scientific certainty that the balls were in fact deflated, then you can't conclude with fair certainty that McNally deflated them, and you definitely can't conclude that Brady was probably "generally aware" of the deflation.
Other major issues:
Accusation relies entirely on the recollection of a non-expert (Walt Anderson) of the precise air pressure of 48 football to the tenth of a psi.
Anderson has every reason to overstate how properly he handled the pregame inspection, especially after he screwed the pooch by losing track of game balls before the game (for the first time in his 19 year career, allegedly), and allowing them into the game rather than switching to contingency balls even though he was tipped off by the Colts/NFL to be on alert.
Anderson is not sure which of two gauges he used to measure balls during inspection. These gauges were later found to provide readings that consistently differ by 0.4 psi, which also happens to be exactly how much Wells' claims that Pats removed from their balls. Anderson believes he used the higher gauge, whose readings on the Pats' balls at halftime are basically consistent with Wells' own ideal gas law range. Nevertheless, Wells decides to overrule Anderson's recollection on this one issue, and concludes that Anderson must have in fact used the lower gauge in the pregame.
Wells says that regardless of which gauge was used, Pats' balls were consistent with the ideal gas law if measured in minutes 0-4 of halftime. But based on nothing more than conjecture, he asserts that the balls were actually measured in minutes 2-6 and therefore are not in allowable range. His whole fucking argument rests on minutes 0-4 vs 2-6.
Officials reinflated Pats balls to 13.0 at halftime, but found that they had inflated on their own to roughly 13.5 in the postgame. How can Pats be held responsible for maintaining the pressure of their balls to within 0.4 psi when the officials themselves could not do it when they specifically endeavored to do so?"