Upgrade to Business with eVIP then cash for First
When recently travelling in First on Cathay Pacific on SFO-HKG, I heard a passenger behind me mention that he bought an economy ticket, used Asia Miles to upgrade to business and than paid the fare difference between business and first. Is this type of "double upgrade" possible on American where you use miles or an eVIP to upgrade between economy and business and then pay the fare difference between business and first? Thanks!