Originally Posted by
MSPeconomist
I don't understand this comment. Once the PNR has been split, it cannot be rejoined; the best you can do is to link the PNRs then.
I think the person posting this meant, "When you split, get reservations to assign the original PNR number to the elite, and assign the newly created PNR to the splitee. Only the Twitter folks are smart enough to do this reliably."
I with you, MSPeconomist, in the that I don't understand how it matters which traveler gets which PNR. It never mattered to me.