Bill Jamisonwrote a review of Black Diamond Compactor Backcountry Ski Pole on February 13, 2014
Familiarity: I've put it through the wringer
I really like these poles since they fit in my BCA Float 22 airbag pack (which doesn't have any good straps for lashing it on the outside). I like my backpack as small as possible, without things dangling off of it so these were perfect in that respect.
After a dozen or so days on these they broke when they got caught in some alders I was bushwacking through. It was definitely harsh conditions but I think my BD Expedition poles wouldn't have had this problem. No metal actually sheared or bent, just one factory press fit tube came out of another and the whole pole collapsed and became useless. Due to the Z-link system, you really can't duct tape or splint the pole together as a temporary repair. I fixed it at home with some JB Weld, but it came apart again after a few tours.
I'm gonna buy another pair of these since I can't find anything better (and I have a spare pole now), but if you're going on multiday outings I would consider a beefier pole that can be repaired more easily.