The funny thing about this proposal is that it won't actually destroy sync cheese, because cheesers are already limiting themselves to 2 duties (LotA and Circus Tower) for 100% of the usual rewards and enabling players to "re-lock" duties in exchange for a 20% penalty won't do anything to prevent that. Players like me, on the other hand, who would willingly re-lock LotA and Circus because we actually WANT non-braindead content, would be taking a 20% PENALTY to our rewards in exchange for a HARDER Alliance Raid roulette experience overall.

I'm on board with the direction you want to go but this is NOT the way to get there.