Scenic double-decker routes in Scotland

[overthewater]

Of particular interest also is the 12:08 service 47 from Stirling which I think becomes a 15 at Creaf? Am I correct and if so whats likely to work it?

Im sure I have seen that journey a few times and its a decker, but again I cant confirm this as of now, since new school term has started and its possible revised duties have taken place.