When launching off the second bumper, make sure to downright dash before or on this pillar to not miss the badeline hitbox.

To make fish's strat work, you need to be horizontal with the feather above or on this point in the background. The fireball will be too low otherwise.

To finish this strat, do a small jump and dash upright when Madeline is under the coin block. The cornerjump should be bufferable.