(03 Feb 2026, 12:06 am)Storx wrote X16/777 - Out of the X14/X15/X18 interworking - Pulsar

That wouldn't work with the timetable. X16s are due into Haymarket at xx:01, and due out at xx:53. Even if the timetable wasn't an issue, you'd have to find somewhere to park up a decker for 20+ mins between X15 and X18 while the X16 used the stand. 

Essentially, taking one route out of that interworking doesn't work.