Agreed -- same as quitting an alliance to get around the new 20% BP rule and then returning. Maybe the 3 day rule should be applied, similar to jumping alliances during world wonders.I don’t like how alliance event rankings can be altered with last minute jumpers in this type of event. Not much better than crown sharing. It would be nice if the bonus would adjust to actual rankings until the event and bonus effect is active, more players only join a team short term to add their points to the average and return to their own alliance later.