Sadly the post-October official website now shows only very small-scale OS mapping, no longer the 600% scrollable PDFs which were there before, so you can't use for navigation. Anyway, it's great that Stottie draws attention to the
major route discrepancy that the website omits. It's also great to report that, according to Owen Paisley, the Route Manager, OS
will revise their mapping to show the route correctly, though our map suppliers had no date for this, so I wouldn't hold my breath. Not clear where the problem came from: the cover of Explorer 356 shows the correct route at small scale, it's only their detailed mapping (which should be the useful bit) that gets it wrong

Meanwhile, the route is of course correct in our newly published
Kintyre Way book, but at small-scale to fit its map flap. To complement the book, we also offer a hand-amended OS Explorer map package, currently the only place in the universe you can obtain the correct route at 1:25,000 - and we even offer it at a discount. As soon as OS brings out a new edition, we'll stop hand-amending with a huge sigh of relief

Please excuse this small plug for a Rucksack Readers
service, but nobody else seems willing to do this time-consuming task, and we'd like to help people avoid getting lost!