Originally Posted by
APU1
So do most FOs log all time as SIC for that reason? If so, do they separate PM / PF in their logbook in anyway?
All FOs at 121 operators log SIC. Only the captain can log PIC. That is determined by whose name is listed as PIC on the flight release. PF vs. PM and "sole manipulator of flight controls" does not matter. FOs are fully type rated though.