So yesterday I was at my local RSL (Australia) and one of the Dragon Link machines had a major jackpot $1300. I went back tonight and the major jackpot on the same machine was just over $900.
Usually when a major jackpot is won, it goes back to $500. So there's no way someone had won the $1300 from the time I was there yesterday to tonight.
What gives? Are they allowed to control the machines to change the amount of major jackpots?