5/ You’ve raced both the CTR and the HT550, how do you think they compare?
If it were just based on the trails I think the Highland Trail would be tougher but when you factor in all the additional challenges I think the CTR is much harder. The major reason the CTR is so difficult is the altitude, it is often above 3000m for long stretches and tops out at around 4000m. Then there is the remoteness of it, in Colorado you can be over two days from any services, in the Highlands you are rarely much more than two hours away from safety. The CTR has the threat of violent lightning storms, usually they roll in just as you get to the start of a massive treeless ridge line! For me this is the worst thing about the route and it can be very stressful. Also water can be very scarce along some sections and it can get uncomfortably hot, these things are unlikely to be problems in Scotland!