Combine the two! Run Edinburgh-Haymarket-Murrayfield-Calder Road-Napier Sighthill-Edinburgh College-Edinburgh Park-Gyle Centre-Ratho Station-Newbridge-Kirkliston-Winchburgh (perhaps with a couple of daily buses to/from Linlithgow).
There's possibility a market for an Edinburgh Park - Gyle - Ratho Station (- Newbridge) combined frequency of every ten/ fifteen minutes, given the various branches towards South Queensferry/ Ratho/ Winchburgh/ Pumpherston. That way, any longer distance passengers (e.g. off the 38 or 747) may be able to change onto a "turn up and go" service towards the Gyle etc - without disrupting long distance routes into the city centre (e.g. 38).
It seems one of these things that goes full circle though - in the '90s the 63/64 ran via the Gyle, journeys on the current 38 do so (before the forthcoming changes), but operators change between "diverting into the Gyle allows us to serve additional markets that the train can't provide" and "diverting into the Gyle delays things for longer distance passengers heading to the city centre and makes the train more attractive".
Small rather snobbish point i need to make but they're 7/8 years old so i'd more regard them Mid life rather than nearly new. Certainly to me nearly new means only a few years old... Anyway
You're absolutely right - of course - I was being slightly tongue in cheek, given the way that Lothian are "hiding" the age of these double deckers and upgrading them to look like they are fairly modern - but I should have explained myself better - apologies.
Maybe I am cynical but once a day peak services each way are really wasteful on the resouces of empty running in one direction, limited stop and not picking up passengers and buses tied up in congestion they maybe eventually wanted these services to vanish in time
The Express services were something that SMT/ First could never make their minds up about. Stagecoach backed their Express services from Fife into Edinburgh, grew them, invested in them, saw passenger numbers rise. First though... they had initiatives, like the X22/X24 then let them dwindle back, they invested in new routes like the 737/747 then seemed to lose interest.
Back in the '90s you could run a peak express from West Lothian into Edinburgh then (instead of running empty back to the depot at Deans or wherever) use it as a peak service from the city centre to Herriot Watt (61) or the Gyle (erm, I think it was C12 but I could well be wrong!), so that you got two journeys out of it - with a similar afternoon service from the Gyle/ Herriot Watt into Edinburgh before the rush hour service back to West Lothian.
Then LRT/ Lothian started serving Herriot Watt and the Gyle properly (before the millennium City - Sighthill - Herriot Watt used to only get a half hourly service on the 22/ 25/ 65; the 45 via Juniper Green is virtually unchanged as far as the city centre) and introduced various services to the Gyle area and the market changed (there were office parks around the Gyle area well before the shopping centre opened).