(18 Sep 2023, 6:59 pm)Storx wrote Yeah thought that was what it's like, something in back of my head is saying it used to be every 10 minutes when it was every 12 minutes though.
When it was first introduced, it was every 10 minutes. It was a combined frequency at Washington from the X1, X2 and X3. Then when the routes were merged, it was a 10 minute frequency throughout, before being one of the services dropped to every 12 minutes in order to apparently aid reliability.