Maybe there is confusion over MEA/SEA with MC/SP.
CASR 61.675 appears to say if you do you're IPC in a Multi-Crew aircraft. you then have to do it all over again in a Single Pilot aircraft.
But I could be wrong as 61.675 refers to "a flight test for an Instrument Rating in a single-pilot aircraft" not an Instrument Proficiency Check.
Have read the reg many times without really understanding it.