Is there demand given the 2326 and 0001? It soon catches up the 2326, as far as that is possible given the signalling headways, in any case. There is a four minute pathing allowance at Farnborough and seven minutes at Blackwater.
Running the empty coaching stock in service back from Guildford to Reading, departing Guildford at 23:45, would provide excellent connections with:-
- 2300 from Waterloo via Woking (arriving Guildford at 2339)
- 2219 from Portsmouth Harbour (2337)
- 2233 from Waterloo via Effingham Junction (2334)
- 2215 coach from Heathrow Bus Station (2328)
Neither of the 2326 and 0006 departures connect with anything useful (the 0006 - timed slightly earlier in the current timetable - used to connect with 2315 Waterloo via Woking*, but SWR have binned that service M-F).
So, yes, running the 2345 in service would be very worthwhile.
*I've used this connection 100s of times when travelling back from London to Blackwater. Since it was binned it's now more convenient for me to travel back via Paddington and Reading, departing Paddington at 2250.