I also wonder how much of a clutch cable's durability depends on those of us running stiffer clutches. Obviously, a totally stock clutch or something light like a Centerforce are going to put less strain on a cable than, say, an FRPP Heavy Duty or King Cobra clutch. All of that tension it goes through over and over, either through brief shocks during quick stompy shifts, or while you're sitting there at a light or whatever with the clutch pushed in and held for a few seconds, is what contributes to the stretching (and breaking, sometimes).
The pedal tension on mine isn't BAD, but it's definitely stiffer than a stock clutch. I tried lubing the cable with some silicone, and it was slick as snot for about a week, then went back to being just average.
As stated, routing of the cable plays a big part, too. Some folks try to go over, under, or through the driver's side motor mount, and get different results for each. (IIRC, I wound up fishing mine through the mount. I'll have to look again, it's been awhile...)
The pedal tension on mine isn't BAD, but it's definitely stiffer than a stock clutch. I tried lubing the cable with some silicone, and it was slick as snot for about a week, then went back to being just average.
As stated, routing of the cable plays a big part, too. Some folks try to go over, under, or through the driver's side motor mount, and get different results for each. (IIRC, I wound up fishing mine through the mount. I'll have to look again, it's been awhile...)