My friend fly's for an airline and now only has a Mulit crew IR and can't get an IMC on the back of it. A multi crew IR is "easier" from a workload perspective than Single Pilot IFR and does not have the partial panel and UA type stuff.
But you only have to do the renewal with an Instructor so why not combine it with your 2 year SEP flight with an Instructor and get it signed off?