Important news for anybody walking the Rob Roy Way: the route now goes off-road between Aberfeldy and Grandtully, cutting out 4.5 miles of road slog and taking you along a delightful riverside path and dismantled railway trackbed south of the River Tay. I walked it recently and have documented it in an upgrade sheet. To get your free copy, visit
http://rucsacs.com/books/rrw/ and download the PDF by clicking the red link (2nd paragraph).
The upgrade sheet also contains a list of minor changes elsewhere and photographs of the fingerpost and new waymarking in Loch Ard forest.
I hope this is helpful to forum users. Will anybody who uses the path please consider posting here to tell us what you think of it?