So, I heard someone joke that practicing PRKD was essentially a Phantoon RTA. This caused me to think of what the best route for other hypothetical boss RTAs would be. Now Bomb Torizo and Phantoon are both just the start of PRKD (although Phantoon RTA might skip an E-tank to save 5 seconds?). For Ridley RTA, PR is faster than the start of RBO, but is KR faster than that? And what about Botwoon and Draygon? It is possible to defeat these bosses without Gravity, but is it faster to do Pb and PD respectively?