I've got all my UTMB equipment in place except a fresh pair of sports pants (you probably don't want to know about my underwear preferences so I'll stop there). They include a pair of ultra light Leki Makalu carbon trekking / running poles as shown below (ooh gasp at their carbon construction and sleek appearance):
I've tried them out once, and despite feeling like a complete prat running repeatedly up and down a hill in rural Buckinghamshire I was very impressed. They cut 10 secs off a hill rep of 4:30 typical with the same effort. Well I never thought I.
Not sure I am using them correctly so any tips much appreciated - I have them at medium height (arms bent a right angles) and am using relatively short thrusts, about half as frequently as my footfalls.