Here is an excellent write-up by rider Mike Tourond of his experiences on the GNR bikepacking route.  https://riotonracing.blogspot.com/2019/10/gnr-350-grand-nith-route.html

Kona ambassador Trevor Browne posted this report of his BT 700 experience on the bike brand's website: ​http://cog.konaworld.com/eating-up-miles-and-butter-tarts-on-the-bt700/