In reply to John Burns:
I bought two pairs of identical poles - Diamond Contour elliptic carbons. They were not cheap. With two sets, I both have a spare and can lend a pair to a partner as needed. To be clear: i suggest the 'carbon' version and the non-shock version. Diamond has since changed the nomenclature of their poles since i bought mine, but i am sure they still have a set that fit this basic profile. Normally, it is their most expensive non-runners and non-shock pole. I believe that "anti-shock" is not just a gimmick, but a counterproductive one.
They are by far the best hiking poles I have ever experienced, by far, and there have been many trips where those who at first look skeptically or disparagingly at my fancy poles by the end ask me where i got them. my two sets (on any given trip i just choose two at random as they're equally worn) have between them have been on 6 continents and dozens of trails and 3000m peaks and have performed flawlessly. Alas, on one of my recent trips (mexico), I stumbled on an easy section and stepped on one of the poles with my mountaineering boots, bending a section. Sourcing the correct repair part from diamond was easy.
why these poles:
- they're lightweight and strong.
- the "locking mechanism" is the best i've ever seen. it requires a 10 seconds screwdriver adjustment maybe once every few heavy use trips and that's it.
- the grips are exceptionally well engineered
- ive had them in deserts, jungles, and swamps, and everything in between. never an issue.
- the tip piece is made of what i can only assume to be some indestructable material that will survive the heat death event of the universe.
but, they do cost many many more times more than the trekmates others have suggested, so there's that.
Any 'twistlock' poles belong in my view in some museum of failed technology.