The Go-Ahead Group timetables are still viewable in the Bygone Era of the forum. I've had a look at the route of the 149 and it doesn't go into Dalton-le-Dale. The Times Inn is a timing point but, as you probably know, that's on the main road. As you correctly state, GAG operated the Mon-Sat daytime 149 service with the PM and Sunday service operated by Favourite.

The Stagecoach/Busways section is un-viewable with one of those '404 Request' messages popping up. As this section contains services operated by Favourite, I am unable to access the timetable for the 149 but it is there so you might be right about the Evening and Sunday service being routed differently.

I believe cbma06 provided the timetables for both operators. Presuming he doesn't read this, one of us could ask him to provide timetable again. If does read this, then perhaps he'll be kind enough to rescan the timetable for Favourite service 149