review Black Diamond Distance trekking poles

I had bought and used Black Diamond Distance trekking pole and here is my review after using it while hiking.
For trekking poles, it has plus and minus. First, the bad ones. Now I couldn't open the lower part of this poles as it has been locked so tight. I am very disappointed with this. And as that lower part made without any rubber grip, it is very difficult to try to hold and pry it open.
I read the manual and try to open it as the manual instructed but with no result. Very frustrating.
But yes this poles is lighter compares to other trekking poles that I have like Leki.
I want to buy another BD Distance poles or something that like it such as Big Agnes Helinox Passport but I am afraid it will get locked tight again. The other choice is to buy pole with ordinary clip-lock style. Hmm I have to think it over again. I will let you know later.