I have a ton of AMEX Membership rewards and usually transfer my points to M&M for the 1:1 ratio.

I end up booking CX Biz/First award tickets and dumping hundreds of thousands of miles.

Is there a smart way to book these flights?

The only option I know of is:

1) Buy a revenue Premium Economy ticket, upgrade for 30k (RT) AsiaMiles before the flight - if - there is J availability in the first place and the process seems rather complex.

Would love some tips on how NOT to spend 140,000 miles RT or more for CX awards.

Thanks!