Changing the date of the Cruisein' show will have the cruising people & their vehicles come to OC in April, or whenever, but the hangers-on will most likely still be in OC the weekend before Memorial Day. They may not have an "official" organization, but they are well organized & can get info out on when to go to OC & raise cain! They will stick to the weekend before Memorial Day because there will be more people (regular tourists) in town than any time in April. OC needs extra good law enforcement during that time period. The fines must be extra high, these people actually factor in "fine money" when planning their trips to OC. The police need to learn the social media sites used by these guys (& a few gals) & follow them carefully so they can anticipate the problems & request outside police assistance.