That’s not necessarily true.... different companies use different pressures....if they want to be considered a FIFA approved ball it must be within certain pressure limits and diameters....but FIFA is really lenient on the rules....as long as it comes withing about 6-8 PSI well its ok...(thats a rough estimate)

Basically what im trying to say is that maybe the ball you bought recommends a higher or lower PSI then what FIRST's balls are using....but you must be careful because the ball may not work right if you try to adjust the PSI to FIRST specs...If its not made for FIRST specs...practice runs with your robot may not be completely accurate


Ohby the way, FIFA is the organization that runs professional soccer all over the globe