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Old Sep 13, 2011 | 2:05 am
  #14  
ChrisLi
15 Years on Site
 
Join Date: Jan 2008
Location: Hong Kong
Programs: BA Gold, JGC Sapphire, OZ Diamond, AF Silver, CX GR, Marriott Lifetime SL
Posts: 3,598
Originally Posted by Kushi
Wait, what is Y miles?
It means the miles that you underlying original ticket.

For CX it's always easy:

Y->J Upgrade : 1 Club Sector, 100% Miles Flew
J->F Upgrade : 1.25 Club Sector, 125% Miles Flew
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