I, like mainly people, do not see a big difference between RPC and RPL. I simply ask what gets me were I want to go ?
I just converted my RPC to RPL which required;
extra 3 hours solo cross country including 100nm trip with 2 full stops,
ELP assessment (bye $150),
an hours online course and $10 for med 5,
lots of photocopying and
$50 to process my CASA RPC to RPL form.
Still need to sort out a BFR.
Then I could fly a Cherokee if I wanted too.
I will probably end up with something in the 600-760kg range, basically a LSA with a decent amount of fuel and luggage.
I may get a 4 seater if I can get the money together (more luggage and 2 dogs).
Main driver for me is controlled airspace/aerodrome which is coming to RAAus (when?) but does not seem to be being driven by RAAus (why?).
RAAus group G requires a LAME so no advantage over CASA registration.
Why would CASA want to go down the MOSAIC route when we are already there with RPT and med 5 ?