Any suggestions to max. miles and optimize routes?

This would have to be AONE4 b/c of the intra-asia stop on the SYD-LHR flight right?

Also, as it stands now, I'm at 21 (CRAP) segments with the new limit of 20.

cai-hel-yvr-jfk-ord-anc-ord-sju-lih(hnl)-ord-dfw-eze-scl-gig-scl-eze-jfk-syd-lhr-dxb-lhr-cai

Thanks!