I have read many articles where people tell you what to bring and what not to bring, including the guide book everyone uses, John Brierley's "Camion de Santiago" and in none of these does it mention the real importance of using walking poles. Having now walked this route form St Jean I can tell you that they are essential. Not only will they help you with your balance it makes it a lot easier going up hills as you can use your arms and upper body to pull you up so you are using the whole of your body, like wise going down the poles can act a break against the pull of gravity. All of this not only builds you upper body up but takes considerable pressure away from you knees and ankle joints........ They do not cost much I got mine from Cotswolds outdoor shop for £25 each - there the green ones and there spring loaded.