Post #673126 by tikilongbeach on Tue, Apr 2, 2013 2:59 PM

The Disney website that you buy your ticket from has links to schedule of events and FAQ's.

http://www.disneyparksmerchandise.com/events/save-the-date-walt-disneys-enchanted-tiki-room-50th-anniversary/?instance_id=

RSP explained on the Disneyland blog for this event. Yes, you have to go through the entire RSP process to buy something.
http://disneyparks.disney.go.com/blog/2013/02/walt-disneys-enchanted-tiki-room-50th-anniversary-event-at-the-disneyland-resort/

Here’s some detail on how the Random Selection Process Works.

RSP stands for the Random Selection Process, a computer program designed to award limited edition product to event guests based on their preferences. Normally, two RSP’s are run for each event. The Random Selection Process and complete merchandise list will be available for event guests to submit once they have registered for the event.

How does the RSP work? The RSP always starts with the first item and moves sequentially through the list of available items. It gathers all the guests that put item #1 as their first preference, randomizes the guest list and randomizes the available pieces. Next, it will match up a random guest with a random piece, continuing until it either runs out of guests or runs out of pieces. If it awards the item to every guest that put item #1 as their first preference and still has items remaining it will gather all guests that put item #1 as their second preference. It will randomize these guests and the remaining pieces and start matching again. The process continues through preference 3, 4 and so on until it either runs out of preferences or runs out of pieces. When item #1 is complete it will move to item #2 and gather all the guests that put item #2 as their first preference. The RSP is complete when it either runs out of preferences or runs out of pieces.

[ Edited by: tikilongbeach 2013-04-02 15:00 ]