Originally Posted by
FlyingHoustonian
Thanks to you (and Kacee). Also remind me, would changing the tickets from 016 to LH stock change PQP and earnings on UA? It shows LH as a preferred. All iof my years as a GS and 1K I never paid attention now I have to LOL

Changing flight numbers -- no.
Changing ticket stock will change earning of non-UA operated flights. From fare based to mileage based.
On expensive tickets, fare based is generally more favorable due to caps on mileage based earnings.