Well, here's another one with the same problem.
It does appear as though the interior of the line keepers are not sewn to perfection, leaving "sharp" fabric on the inside fuzzing up the excess steering lines. I had a rigger change them for me and 60 jumps later they are starting to bother me again, atleast in the esthetic sense.
He said the had also noticed the problem on atleast some of the rental gear at our dropzone (all icons)