Apart from the fact that I've been forced to use route 220 more times than I'd care to remember, I've actually done some gunzelling in the last month.
I have now done routes 672, 677, 685 (to Coldstream), 688, 689 and 694, as well as Telebus Areas 1 and 2.
The Lilydale/Croydon area has a number of quirky, non-standard routes, ranging from half a dozen demand-responsive Telebus routes, to hail-and-ride routes like the 677, and then deviations of routes that run only a few times a day.
Let me say first, I think single-door buses are crap. I do, however, support the use of smaller buses in low-demand areas.
I have also come to the conclusion that Telebus services are a shitty attempt to provide a service to the majority of people, hence why patronage was generally low from what I saw.
I believe that the people in those areas would be better off with fixed-route services, even though most people would have to walk further to a bus stop. It would be easy enough to make the base Telebus route (ie. the route taken if there are no home pick-ups) the regular route, while adding a number of new stops.
In addition, the separate numbering system that Telebus routes have is redundant; as such I would support renumbering the existing routes to 661, 662, 663 and 664 (with 667, 668 and 669 used for the Rowville area - but that's a rant for another day).
As for hail-and-ride services, I believe they have their place - but I don't think fully-urbanised routes are it. They should generally be in rural areas on less-frequent routes, where installing fixed bus stops that receive little to no patronage would be cost prohibitive. Certainly the 677 doesn't meet either of those criteria.
In its current form, the 685 deviation in Coldstream serves little purpose other than being a rail feeder. As such, I believe it should be through-routed to Chirnside Park, either via route 677, or the renumbered 661. At least then it might get a moderate amount of patronage.
(Is this seriously only the sixth non-waffle post I've ever made...out of a total of 60?)