I think you are confused between what a LP does and what an ALP does.
I am talking about new LP...not a new ALP.
Before becoming a full fledged LP, they are made to work as an ALP.
So you won't be directly jumping off to LP seat. 1st you gonna be ALP.
So...
more... when you get promotions from ALP to LP, and you operate your 1st Express Train, that's the most nervous moment in the life of a LP.