Thanks to all who contributed. I think the answer lies in whether there is a requirement to have a co-pilot, arising from the POH, CASA Approved Ops Manual or CASA regs, such as ICUS.
No, I'm not at that stage yet, so i won't be doing a CRM anythime soon. I'm considering completing my training for ME and CIR where there are multi-eng charters and was wondering what opportunity there would be to increase time with co-pilot time.
I'll have to establish a sound reason before I jump in the RHS with a rating and start logging the time. I know that co-pilot time in a PA31 is not going to be very impressive, but at least its some kind of aeronautical experience.
Yes, I'll check the Ops manual, CP and CASA if I ever get that far!
Cheers,
PD