So yesterday was my first Pathfinder Society experience, but I came across an all-too-common ruling concerning disrupting casting.
Simply put, I wanted to ready an action to cast Create Water over a caster when they began to cast a spell. According to page 207 of the Core Rulebook, I thought this was entirely reasonable. The judge, however, disagreed.
Now at the time I didn't feel the need to press for a reason, considering we were already sitting seven players and the combat was taking quite a long time and I didn't want to draw it out and was able to take other actions, but I was hoping other judges out there might be able to point me to a reason why the use of Create Water would not be a reasonable disruption for spellcasting, requiring a concentration check.
Also, beyond stopping play or taking the time to discuss (or argue, as the case may be), is there another recourse for pursuing such a dispute in PFS? An official ruling on various controversial or difficult topics or a FAQ listing anywhere?