So pretty good. But given the withdrawal of the 23:45 306 ex Newcastle, I'd suggest re-timings of the following.....

ex- Newcastle
22:30 309 >> changed to 22:35
22:45 306 >> changed to 22:50
23:00 310 >> changed to 23:05
23:15 308 >> changed to 23:25

ex- North Shields
23:45 310 >> changed to 23:50

The above would mean:
- No more than a 20 minute wait along the Coast Road at any given time.

- Hadrian Park benefits from a service 'after' 11pm...although only slightly.

- Reasonably late service retained for customers travelling to Billy Mill.

- Still an even(ish) gap between the last 3 308 & 309 journeys with services at either side of the hour ex Newcastle between 22:30 and 23:30.