Wow, I thought Hawks fans were smarter than this thread shows. The best solution would be to drop that rule and let teams inflate to whatever they want (except for kicking balls). Who cares if Brady prefers 11 psi and Rodgers prefers 14? The other team is not affected in any way. They already allow each team to customize the footballs by scuffing etc., because a brand new football is too slippery to throw.
Also, here's Terry Bradshaw in a book he wrote previously:
Most fans don’t know it, but before the game we would doctor the footballs that would be used. Until the season of 2000 it was up to the home team to provide twenty-four game balls to the officials for each game. A brand-new NFL football straight from the factory is not easy to throw or catch. It’s rock hard and very slippery. So in the privacy of the locker room before the game, players would take the footballs and rub them and scrub them to remove the glaze, or deflate them, then pump them up with air real big to stretch the leather. On some teams the kickers would put them through a cycle in the dryer. Some teams did this, but naturally not the Steelers, because we were righteous folk who would never stretch the rules, and when these other teams—not the Steelers—were finished, they would put them back in the plastic wrapping and right back in the box. Some teams—who were not the Steelers—after the officials had checked and approved the game balls, would let out a couple of pound of air to make it easier for the quarterback to grip it. A little less air would make the ball spongier. It was what might be called a perceived advantage-both teams played with the same ball.
This controversy is a total farce.