0 soul strat for the first 3 spiders in the big darkroom. Works on every rng as far as I can tell. Clips cover both rngs for the 3rd spider and pretty much every rng for the first 2. Be sure to go neutral for the dashes before the 3rd spider. In terms of timing: For the first 2, you should do this. Fireballing is slower and nothing else is consistent. For the 3rd spider, it loses about .15 to just fireballing, (think it depends on rng though, if 3rd spider is left then this strat loses slightly more?) And loses about .4 to just sending it. Wouldn't recommend
spider elevator. old strat usually required 2 fireballs for consistency. you can always get away with having just a single cast. 2 options are:
you are too low or the spider moves too far left so you can dash into the platform and then get another pogo without casting a second fireball
you're high enough and can do the normal wall jump with a single cast
avoiding 2nd cast makes soul collection in the rest of the rooms before den super comfy and you can greed a lot more. didnt time but likely fastest strat saves around 0.5-0.7 due to not having to dash + pogo spider again.