Potjie is not a dutch oven. It has a rounded bottom like a wok so it cooks a little differently than the lodge flat bottom dutch ovens. See what a potjie looks like here: https://www.google.com/search?q=potjie&client=ubuntu&hs=qsU&channel=fs&source=lnms&tbm=isch&sa=X&ved=0ahUKEwj_x_j0hbfLAhWKXB4KHds4CL0Q_AUICCgC&biw=1553&bih=731
Would be great at a race, but taking one camping on foot is another story. It is much more massive than a lodge dutch oven of the same capacity. Probably 3 times the weight.
Cool. Would love to examine one of those. I love the permanence of cast iron cook wear.