tldr: on 1.4 leave middle elevator up at the top when going through DLC rooms and use the elevator shaft to drop down. on 1.5 leave elevator at the bottom and do 1.5 elevator squeezes, check here for rough timings: https://discord.com/channels/772964112908156938/836364889604751450/937662345151414272
- free fall drop saves 0.3-0.4s over a good lever drop.
- a possible ddark drop can save ~0.6s, but I found it harder to do well.
- getting the inv drop can save 1.3s, but the floor hitbox was very weird and felt rather cursed. you can likely get used to it w/ practice though.
https://youtu.be/VC0DDzYeH3o
2