This is posted on their website, rules for One Pocket. You can really jam through the balls if you lift your back arm? I thought you had to aim off of a ball you are frozen/tight on? For such an auspicious tournament with serious gamblers in attendance, I am stunned to read this rule, see below (the bold is mine):
Double Hits, Push Shots, Miscues
Object balls frozen to the cue ball or very close to the cue ball require you to elevate the cue approximately 45 degrees to stroke the shot. This will be considered a legal shot even though a double hit may occur. Even with an elevated cue, you cannot place the cue tip on the cue ball and shove it forward or it will be called a push shot and result in a foul. An unintentional miscue is not a foul. An intentional miscue is a foul.
Double Hits, Push Shots, Miscues
Object balls frozen to the cue ball or very close to the cue ball require you to elevate the cue approximately 45 degrees to stroke the shot. This will be considered a legal shot even though a double hit may occur. Even with an elevated cue, you cannot place the cue tip on the cue ball and shove it forward or it will be called a push shot and result in a foul. An unintentional miscue is not a foul. An intentional miscue is a foul.