I had three five foot high strand 2 gauge cables, I got on the cheap. Anyhow, a couple of the lugs slipped off from a poor crimps. I like the price, but am now skeptical of the quality of the assembly. Hacked off all the ends and re-lugged. I use the 2 gauge for my winch grounding, the shielding is kind of bunk also. I'll check out the HF stuff too.
Just give the lugs a twist and a yank to see if they're on there good. If not, the re-lug and slug only takes a couple minutes.
j