Regarding these various poles;
I've used various poles of fixed length and variable length.

This includes a couple of Leki-style variable length and a couple of models of Black Diamond Flick-Lock models.

Fixed length poles, are of course, fixed, which is in itself, a virtue....

The BD variable length poles I've used are in my view... far superior to the Leki styles.

This is due in part to frost and ice. Also, the BD poles are much simpler in their design and adjustment.

I would urge anyone to consider the Flick-Lock design. Intially I thought they were inferior, but I've come to believe their superiority over Leki is a no-brainer...

Lately, I note that BD has included two methods of adjustment in their poles.

Am as a result personally confused...