If you dont have coated Kevlar the exposed line can be protected by hitting with a drop of thin c/a. Chafing generaly occurs when it comes in contact like at the exits. At these points pass the kevlar thru teflon tubing as a guide.

Great ideas... I had a metal cable that was nearly new break on a negative snap. I still had up elevator so I was able to salvage my airplane but it is a scarey feeling when losing control or partial control.