Me, I've got some of those mountain king poles. They are pretty much same as the Raidlight ones, but little bit cheaper (and I think made here in Britain) and for those wimps amongst us much easier to set up. The cord that you pull up to make the poles straight is a bit more flexible than the raidlight one and also (in my opinion) looks a bit more robust.

As with any of these lightweight poles you wouldn't go and fling your whole weight on them like you would say with proper walking poles, but mine have taken a lot of stick and have had me leaning on them quite heavily in the latter stages of a few ultras here and the alps and look fine.

The other good thing about the poles like these and the raidlight is that they are so light and fold away neatly, that if you are having the poles/no poles debate pre-race you can just have them in the side of your rucker in case.