I've referred to your review a few times as I wait on my Angler 120 pd to arrive at the dealer. Been waiting since Aug 1. Frustrating however its given me the time to read/watch everything Angler 120 PD.
I've been brainstorming the cable issue since learning about it breaking on people. What keeps bugging me is that a couple years ago I spent a great deal of saddle time riding centuries throughout the state of Alabama and not once have ever frayed or broke a cable (brakes or derailleurs). I change gears and brake very often so I know there is wear and tare.
Because I am not a Angler 120 PD owner, officially, I'd like to comment from your picture which has been a great help. After looking at the cables on my bike(s) I see that none of them are rubbed by a side-to-side moving barrel like your photo suggests. If that entire barrel pivoted when deflected, it really doesn't matter, i think, how tight the cable is secured inside the barrel via the hex screw as long as the edges of the cable hole are not rubbing the cable.
So my dumb question is, what if the lock nut securing the barrel is loosened a bit to allow the barrel to pivot, could that stop the cable from being rubbed by the barrel and fraying? I did watch the Youtube guy who showed how to replace the cable and noticed that his barrel didn't pivot as he was feeding the cable through the barrel.
Again, thanks again for the review, its fun to read while i wait and wait and wait....