Perhaps flush can have multipliers on the site but give extra reward for bitcointalk users, I think it can be called as exclusive promo for bitcointalk users as well although the main contest is on the site.
We will only offer a special promotion exclusively for users of the Bitcointalk forum.
Flush management can follow their strategy for running the slots multiplier contest.
We are considering organizing a contest lasting for approximately one month, similar to the concept duelbits had.