Should earn 100% on AS @ 3.7cpm.
Not bad for an awesome destination, if you can survive SFO-SYD in Y which is not ideal. Fare rules say stopovers allowed 1 free additional $150. But they also say 10 day minimum stay ,which isn't being enforced it doesn't seem.
Sample below:
https://www.google.com/flights/#sear...22-SYDSFO0QF73