I don't think they do interwork as the 555 is branded?
Plenty of Enviros on the trunk routes in the lakes. Most of the tridents will be outside in Kendal/Barrow/Carlisle.
Nice scenery too.
I didn’t think so either but found some occasions where buses had, unless these are errors, on the bustimes tracking database. There are still plenty of journeys that don’t show on there for whatever reason, but it gives a good rough idea. If this is trusted then :
https://bustimes.org/vehicles/40579?date=2019-06-01 10031 worked 755 and 555 yday
https://bustimes.org/vehicles/111208?date=2019-05-31 18140 worked 555 and X6 Friday
https://bustimes.org/vehicles/46969?date=2019-05-31 47007 worked 516 then 555 Friday
Have looked at photos and videos online, really looking forward to the scenery, doing the open top 78 and 508 routes too
the current Kendal based 555 fleet (dating from two years ago) stay on the 555, except for the three (?) kept at Morecambe which are often used on the 40/42 to Preston / Lancaster and the 1/100/x2 to the University though with summer approaching they'll probably switch back to the 555 expresses routed up the M6.
What appears on the Barrow-Kendal 6/x6 are a small number of green painted Tridents which were spares at Kendal as backups to the old green 555 Enviro (?) fleet, these are now based at Barrow. I haven't seen any of the old dedicated 555 fleet for ages, though they were also on the 6/x6 for a while
755 uses anything lying spare at Morecambe, though I've never seen a green one on it
to put it another way
555 works from Kendal, with three spares kept at Morecambe
755 works from Morecambe
6/x6 works from Barrow
Kendal also runs most of the services around the central spine, including the open toppers and the "village" services north of Milnthorpe, many using green single deckers
From latest fleet lists -
Kendal has 10552-9 with 555 branding and 18381/2 in green based S/C livery and beachball 18140 as spare for 555 I assume. These appear to be main vehicles on weekdays at moment
Morecambe has 10560-3 in base Lakes Connection livery, which appear to see daily use on Saturdays now for the extras, with some other Morecambe vehicles appearing too -
https://bustimes.org/services/555-lancaster-keswick/vehicles?date=2019-06-01 is yesterday’s list.
I may just be reading into this data a bit too far, after all it is rather new and does show some conflicting information. If the interworking is true, it’s certainly not something I would have expected to occur on a long route like the 555. As per lists, around 14/15 work the 555 with summer extras so I guess there’s always going to be a few non-branded MMCs on the route