While on my Cradle grind, I was noticing my pace to the hut was a lot slower than on my Agent 0:34 most of the time, and I quickly noticed that killing the guards is what's costing me. I was starting to consider to always skip the upper cutscene and only play lower cutscene runs since that means one less guard at the ramps. Curiously, I was looking at runs to see what cutscene other people had and noticed something very interesting:
Out of the 57 Cradle SA/00A 0:34s on the ranks only 7 were with the upper cutscene!
Almost 90% of all Cradle SA and 00A WRs use the lower cutscene, which certainly does make the run easier, but I was shocked at how significant of a difference it seems to make! The only 7 runs which use the upper cutscene are Grav's SA, Irie's SA, Sakuya's 00A, Boss's 00A, Ace's 00A, Grav's 00A, and Haydos' 00A.
With this clear pattern and logical reasoning behind it, I would suggest to start skipping upper cutscene runs and only play out lower cutscene runs!
Hopefully this tip will make everyone's grind much easier for getting nice Cradle SA and 00A times!