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Ours is slightly different as to whether they all have middle names or not but it seems to work ok.
One time Delta wouldn’t let my husband have precheck though because I left off his middle name on the booking.
We have Delta Digital id now though which helps.
Transferring didn’t seem to be an issue but I agree it’s confusing bc I don’t give my middle name on my credit cards.
I guess I’ll see if that becomes an issue in the future.