Oil flooded twin screw compressor system. Components: compressor, oil separator, oil cooler, condenser, receiver, economizer, dx evaporator. Question: If system was pumped down (closed liquid line and pumped as much refrigerant into receiver as possible while system running); Any idea what percent of that refrigerant would be oil? I know it would depend on how efficient the oil separator is and maybe some other factors AND also that this is a way-out-there question but hey! I gotta ask! Refrigerant R-22 app. 4,000 lbs. Thanks.