Despite not using the double jumps AND messing up, this ended up beating PB. Uses the new double-jumpless way of skipping the first spectral fight, where you wall jump up and rev jump over the gap. Double jumping is still technically faster, but this trick ends up losing only a few seconds. Given that, for IL's you'd probably want to stick to double jumps (if you can pull them off), and for full-game runs this less risky strat is better.