I'd try going simset, but I'm not sure if you can add a className to those so you can define methods. If you can, definitely - I can't see any other reason they wouldn't be used for the default minigames. If not, you can just set the size of your list of members to zero. When you then go to add members in, you'll overwrite the old ones, and the leftovers will just be ignored because the size says the list ends there.