Flip Cup Rules / Etiquette

This season has seen a considerable drop in the number of rules questions I'm getting.  I'll take this opportunity to give a very BIG THANK YOU to the people who have been Head Refs this season as I suspect it's mostly due to them.  With a lack of a rules question for me to write about, I'll use this week to discuss Flip Cup.  Since Flip Cup is a gentlemanly game, it's more about etiquette than rules, but if you follow the points below, no one should have any reason to protest.

Happy Flipping!

• Beer should be filled to the first line of the cup, or to an amount even to the person across from you.
• Only one hand is permitted to make the flip. A second hand can be used as balance assistance when playing on tables with less than ideal edges, but should in no way be used to guide the cup during the flip.
• Mid-air flips are not allowed.  The cup base must be touching the table when the flip is made.
• If a person touches their cup after they flip it, but before it completely settles, it must be reflipped.
• A person is not allowed to touch their cup until the person's cup before them has completely settled.