There's actually a good interview with Jonny and Spencer Smith that Super League have just posted on the FB.

JB - "He'll be hurting a lot, won't be happy. He'll be looking at the reasons why - the heat's one, travel, and maybe the training he's done. Up that hill, I was waiting to see him attack off the front, not off the back! In some ways when you're doing a lot worse than you should be, it's a good thing because it means there's some reason why".