One of mine was intermittent and I had to take an end apart to resolder a bad connection. This was a long time ago but if memory serves me right the stiffness is due to a thick, clear tube the wires run through. The tube is a good thickness which is why they don't bend very well. That's why I'm not comfortable with the bend in that one cable.
I really liked the Virtual Dynamics cables I used. What got me on them was I was given a $300 power cable of theirs years ago when the owner gifted one to a bunch of us that were discussing cables on an Audiogon forum.
Once I got the power cable the bass increased so much when I connected it to my CD player I couldn't believe the change. I next bought a set of speaker cables which did the same thing, increased the lower end.
The increase in bass was too much in my system so I had to let them go and find something different. I really liked the cables other than the increased bottom end.