Did my first UK hill climb yesterday. (top 10 overall) They're a big deal (in a normal season) over here and mostly take place in September and October. This one was a 2:30 minute effort by the winner, and that's not really unusual, so if thought there was a lot of hassle in logistics for a 45 minute crit, this would make your head explode. The varying gradients and durations really make these interesting. A short one, like I did, might almost suit pure sprinters, where some are 10 or 12 minute efforts and completely different power profile.