I have a redneck brass sizer using an RCBS motorized tool that I converted to pneumatic with a foot switch to load and unload the brass vs the manual handle.
It increased the amount of time to resize by a lot.
I may have a video on it somewhere. If not, I'll shoot one tomorrow If time allows.
Bought but have not installed the hardware to make the tail stock operated by a foot switch as well. Currently the brass goes into the chuck pneumatically and have to manually bring the tailstock in to size.