Double Head Msb Services?

Could anyone please remind me which services are double head 185 locos on MSB?

 

I can't remember which ones, but all the heavy/longer freight train services. Just pay attention to the service descriptions, when its a heavy load then there should be a doubleheader.

 

Only ones I can see are "nonstop freight" and "fast freight"

The heavy ones are x1 loco because they have the banking loco join them.

 

Hmmmmm maybe the "nonstop freight" services have the doubleheaders? if not then it's just random I guess

 

In case you didn't know already the "Auto Runner" scenario is a 185.2 doubleheader.

 

Thank you! Just what I was after