Season 8 of Spring Baking Championship introduced two gimmicks, and both of them failed.
The first was the elimination of two bakers in episode one and the introduction of two new bakers in episode two. Typically, a season begins with twelve bakers and one is eliminated each episode until the season finale with the final 3-4 bakers. In this season, two bakers were eliminated in the first episode to make way for the addition of two more bakers in episode two. The new bakers, however, first had to compete against each other alongside the other bakers. Out of the two bakers, the one with the better dessert would continue competing. At the end of the episode, one of the new bakers and one of the original contestants were eliminated, bringing the contestant count down to the regularly scheduled ten. The second new baker, however, was eliminated in episode three, making the whole gimmick pointless.
The second gimmick was the unexpected introduction of a pre-final bake off. Until Season 11, season finales included two rounds. The first round eliminated one of the four finalists. In the second, the final three competed for winner of the season. In Season 11, the four finalists still competed in round one, but then, the bottom two were required to compete against each other in a bake off to join the top two in the final round. Unprepared for the sudden development and overwhelmed by the emotional toll of the previous round, however, one of the contestants simply quit, making the other the winner by default and the whole gimmick pointless.
The first gimmick never made another appearance. Despite its similar failure, however, the second would become the new finale format for all following seasons of Spring Baking Championship. No one has quit since, so it seems the contestants get a warning about it now.