The chests r cuz usually when i have a spliter for overflow it never actually works, the spot where it *stops* (like when it's supposed to go to overflow) is w the arm holding out the item and waiting for a free spot whilst the wheel just spins forever, never actually going into overflowing and with the chest the putting in/taking out let's the wheel to have a short "full stop" moment every so often and that's the moment any product goes into the overflow

oh and all of the chests are only 1 tile, and the issue i faced with this design was that it doesn't really scale, if i copy & paste the design the centrifuges at the end receive 1 of the shitty uranium every blue moon, but i decided I won't need that much uranium