Although I have no experience with the Triton foot, looking at its specs, it doesn't seem like a best choice for hiking. For Nordic walking or hiking, I'd say one needs to look for a foot which is energetic enough and at the same time has strong eversion/inversion capabilities. I get the impression from Ottobock's site that only their low profile foot versions may be candidates, however low profile versions often have relatively weak energy return and low eversion/eversion range of motion.
I think the following feet may provide better solutions for your requirements (in this order):
Note that we've recently reviewed two of the above mentioned feet on our community blog: Ibex foot review, Vari-Flex with EVO foot review.