So I'm understanding that going to T4 is less chaotic than TBIT...I'll have priority tags from CX but if I want AA priority tags I should go over to T4 and wait in the bag drop line?

Thanks so much again!

(I always get lost in US airports somehow, and I'm going to meet up with a friend before he joins me on the flight to BOS so I'm hoping to not spend much time looking for directions!)