Originally Posted by
kawaii
I thought I might save a credit score hit if I do CSP + Ink at the same time, because if I applied for multiple cards with Chase in one day, it is the same pull? Is that not correct?
That's true, but the UA Explorer is also Chase, and it's unlikely you'll get all three on the same day. If you qualify for the 55k (50k after spend + 5k for adding authorized user) Explorer offer, it's the better way to go for now. More miles for lower spend.
You can always get the other of Ink or Sapphire later, but you don't need it for this trip given the miles you already have.