Originally Posted by
thirdgenbird
I came back and took a second look. I don't think your rear brake softness has anything to do with the housing or routing. It looks to me like the cable is not seated inside the barrel adjuster.
Hmm, at the caliper? I took it on a quick 10 mile ride after those pictures and when I used the rear brake at full pull I felt a pop and then the caliper opened up a bit, I must have seated it, hah! I haven't looked at it since but I bet when I reset pad spacing they'll work better.