idk what to do in that case, last time I played there'd be runs where that strat worked and runs where it didn't. Another tip that might save a little extra power is when you see she has left, don't immediately shut the door. Instead, wait until you hear the sound cue that tells you she is about to appear, and then shut the door the split second you hear it. The sound can be a bit quiet so it might take some practice. Although if Bonnie or Chica come at the same time I'd just shut the door and flip to the left hallway to trigger the attack. RNG really is a bitch, and the only reason I completed 4/20 mode was because Freddy took a long time to kill me after the power ran out.