I decided to get the LightTrek 4 poles. So far, very happy. On the flats I carry them in one hand about 50% of the time, the rest of the time I 'trek' with them. No noticeable flexing. When climbing hills I experimented with attaching them to the pack via the ice axe loops and velcro straps, but that was too inconvenient. Now I just use them up the hills, and if I need to go on all fours, just hold them in one hand. Here are some pictures...
Trekking Mode - I am a little afraid of snapping one when it gets caught in a rock, but they are so light that I can feel it when they catch, and before I bend them.
I really don't like to hike where there are other people, so I generally stay off trails and hike cross country where it is unlikely there will be other hikers. Carrying two poles was of some concern, especially on slopes. I found they are so slim and light, I can just hold them in one hand when I need to use all fours to climb, and when needed it is easy to use one or both of the poles for balance.
Here is a slope I needed to climb to the left of the gully. Basically I needed to traverse about 600 feet up this slope. Worked very well, and I was surprise how fast I made it.
The view from the top of the slope. Just below that Ocotillo you can see the canyon and foot of the gully where I started.
Poles for poncho/tarp. I didn't need to use the tarp, but since it was going to be windy at night, I set it up to see how it would work. I am pleased.
In this terrain, it is somewhat difficult to find a place to set up a tarp, because it is mostly rocks and thick vegetation.
Oh... and what the heck. I might as well do the obligatory SUL pose :)
Base weight = 6 1/2 lbs.