Gauge calibrated??

[Scrapper1]

Originally Posted by MCBear

We are concerned with how a ball meets that requirement so that it can be handled properly by the players...never with how it bounces off the floor since a volleyball bouncing off the floor becomes a dead ball ending the rally.

I understand that. We care about the internal air pressure, not how the ball reacts on the floor. But if the ball bounces the proper height off the floor, doesn't that indicate the proper internal air pressure?

That is, after all, why we bounce the ball in basketball. We're not checking to make sure it bounces straight up (although if it didn't, we obviously wouldn't use the ball); we bounce the ball to make sure it bounces the right distance so we don't get rebounds that go to the ceiling. IOW, we're not checking the shape of the ball, we're checking the air pressure.