Non-sanctioned leagues generally do not have a higher authority that governs rukes.
Bowling leagues like to have an even number of teams. If a league is short one team, then a "blind team" is added to make an even number of teams. Different leagues have different rules on how to handle the scores for the team bowling against the blind team.
That the league is recognized by the USBC (United States Bowling Congress), formerly ABC (American Bowling Congress) as a league. The USBC is the sanctioning body in the US. It means that they are the ones that set the rules and make sure they are followed.
Generally, bowling does not use officials. In sanctioned tournaments, if the foul sensors do not work, then there is suppose to be one or two line judges watching to make sure someone does not step over the foul line.
Grind your ball into the pocket. But make sure you don't make it too deep. Different leagues have different rules about how deep your pocket can be.
At a bowling ball factory.
10 frames make a game of bowling.
With sandpaper. Make sure you DULL the whole ball and not just the track since it is against the rules to dull just the track.
you cannot make a floating and sinking bowling ball, it is highly impossible.
Depending on the league millions of dollar , the college leagues make a great deal of revenue as well as the professional leagues.
Of course he his freshh !