Sorry, should have been clear, I knew the 165 was a short formation, I'm not yet familiar with the new diagrams other than that there are 4 turbo diagrams.
From what I can make out Barnstaple has a booked 150 now in the evening once the Barnstaple Axminster service departs, the inward working from Okehampton goes into platform 2 at Central then goes back out as the 18:15 Barnstaple.
There was also a 3 car 158 deputising today, I worked this on 2T07 which was cosy after Newton Abbot (me being me i still fought my way through and checked tickets

)