text: Rather than one guess being applicable to all measurements, I ended up needing four different groups each with a different guessed deflation. A good guess (i.e. one that worked) for the majority of balls (7) was 0.38 psi an interesting number that Ill discuss in the post. A good guess for two balls was zero deflation. But for ball #7, it was necessary to assume that it had been inflated by approximately 0.5 psiin the washroom. One ball was lower than the others (0.76 psi) and remains hard to explain. The Wells Report reasonably drew attention to variability, but did not address the details of actual variability other than arm-waving and did not actually show that erratic washroom deflation was a plausible explanation for observed variability.