Thanks for all the feedback. I've adapted the Killin Route as per @wence's suggestion. It would be great to have any feedback from @Ecobeard and @onyerbike about the 45-60km section of the same ride. Do you think it be rideable on 35mm gravelking sks? If it's wet I will probably stick to the more tried and tested NCN parts.
Killin o1 - It's the bit going South between Lochearnhead and Callander that I'm unsure about. It's part of the Central Belter route so not invented entirely by me!
Thanks for all the feedback. I've adapted the Killin Route as per @wence's suggestion. It would be great to have any feedback from @Ecobeard and @onyerbike about the 45-60km section of the same ride. Do you think it be rideable on 35mm gravelking sks? If it's wet I will probably stick to the more tried and tested NCN parts.