<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by sjharte:
Surely though if you have status on UA and start using you LH card you'll show up on the system as a flyer without status rather than as an exulted (?!?!) Star Gold flyer.
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Not if you change your FF number to (say) LH at the gate, once upgrades have cleared. There is a risk to this (gate agent not knowing how to change the number) but this is usually remedied by having the number deleted entirely and then seeking retroactive credit.