It's not that... there won't be any passover. It's different bids.

Look at the 757 letter.

01 AUG 2016 Training date
SF & BW were awarded M57C slots on 15-01
SM was awarded E57C slot on 15-01

20 JUN 2016 Training date
SM & TH were awarded M57C slots on 16-01
BR was awarded E57C slot on 16-01

Not that I care, but I always thought the training letters trained in order. All 15-01s would train before 16-01s. I guess not.