Gauge calibrated??

[FMadera]

Yes, I'm saying you can have that. I'm also saying a volleyball bouncing off a sportcourt isn't going to bounce as high as a volleyball on a basketball court. A volleyball on basketball court A isn't going to bounce the same height as a volleyball on basketball court B. Not all balls have the same softness. A softer ball will compress more (and therefore, rebound less) than a harder ball. Every ball will react just a little more differently than the next one, so the bounce test doesn't fly.

The PSI rule is pretty clear. There is no other way to accurately measure it other than with a gauge of some sort. The rules don't specify how the ball should bounce, but they do specify how much air should be in them. Therefore, the gauge should be used to assess legality.

[Back In The Saddle]

Most of what I've heard so far equates to "it won't work because it won't work." Which is a total non-argument.

I do buy the argument about different surfaces producing a different bounce. I also think that the relatively small mass of a volleyball would probably make for a much wider range of bounce heights, and allow significant variability based on the material and age of the ball. Much more so that in a basketball.

[outathm]

I think that Basketball has always used the bounce test and so that is acceptable for them. Volleyball continues to require us to gauge the balls and that is what we will do.

It would be interesting to see what the Basketballs gauge at after a bounce test and what difference there is from proper inflation.

[Scrapper1]

Originally Posted by Back In The Saddle

I do buy the argument about different surfaces producing a different bounce.

Since I only work games on hardwood basketball courts, this is irrelevant to me, personally. It might make some theoretical difference, but not to me.

I also think that the relatively small mass of a volleyball would probably make for a much wider range of bounce heights, and allow significant variability based on the material and age of the ball.

Being a non-physicist, this seems to me to admit of a fairly insignificant difference between balls.

And to a larger point, if 2 balls can have the same air pressure and bounce to significantly different heights, that's a terrible situation. You play the first set with a ball that the kids get used to. Then it rolls under the bleachers and you play with another ball. It's perfectly legal, because it's the same air pressure as the first. But the first server hits it 20 feet out of bounds because the ball bounces significantly more, even with the same air pressure.

That's a ridiculous situation.