[Bloody Sam Roberts]

A slightly deflated ball is easier to grip tightly in wet and/or cold weather.

And a QB who has practiced with fully inflated balls all week is expected to perform better with an under inflated ball? I am dubious.

[newfreep]

Just simple physics - one can more easily squeeze vs a fully inflated that is larger, harder and less “gripable.

Anyone who has played street football or even just passing it would grasp that reality.

It’s not rocket science...