As the use of 377s is miniscule/to non existant on the SEML its 99.999% always a 375 towards Ashford or onto Tonbridge etc, I'm forced to use either a Class 375/9 (using a subclass) to Sevenoaks or if that train from Strood finished at Tonbridge (one stop further) I could use either a Class 465 to Charing X or a Class 377 to RedhillClass 375 to Paddock Wood