At first I was shocked by how large a sled he dragged. I use a much smaller sled (just a deer sled). Then I saw how smooth the terrain was at least where the photo was taken. Then I read that he was out for 53 days . And of course his conditions are far, far more grueling than I have ever faced (all in North America). So then I was shocked at how little he had with him!
If you look through Colin's earlier instagram posts [1] you'll see that the terrain was not smooth for much of his journey. The terrain is covered in sastrugi [2] and this year was marked with unexpected higher temperatures and snowfall which made the skiing very slow for Colin and all the other explorers out there. Explorers Web has a good collection of blog posts about the various expeditions that are happening this season [3].
[1] https://www.instagram.com/colinobrady/ [2] https://en.wikipedia.org/wiki/Sastrugi [3] https://explorersweb.com/category/poles/antarctic/