All seemed to be running rather smoothly today. Lots of patronage, most seemed impressed, although one or two confused looking people and at least one person who looked very annoyed after realising they'd taken a train up the wrong branch to Stratford.
The ex-Heathrow train I ended up on at one point did pause for a minute at the CBTC boundary, and the driver announced something like 'he was waiting for the system to pick up the train'. Are there still some demons in the system doing this at line speed, or did I perhaps mishear?
When it did get 'picked up' I noticed the PIS went blank until we were birthed in Paddington at which point it started showing Abbey Wood via Canary Wharf again. No such problems making the transition between Stratford and Whitechapel.