Patroklos:suggest that a re-tier system be programme, can't be hard... just the opposite of promoting thru the tiers, but in reverse.
There's already far too much sandbagging going on at WGT, and now you want to introduce a way for people to be able to deliberately reduce their tier? Not long ago WGT made a change to the tier system so as to prevent a player from being able to increase their average and thus forestall promotion. I only wish that they had, at that time, separated the "tier" average from the "true" recent games average, and kept the "tier" average and its formula secret.