aligator i-link and mini-ilink - costs more, available in many colours, can run a smaller radius, is lighter but shifts just as well.
.... but why are you having this problem - are you running them i n too tight a curve?
i think it because its a dh frame (karpiel avalanche)
an it has a lot of travel
i am running a full lentgh from front to rear
first time it split the outer on the chain stay just below the ferule /end cap
now its split as it enters the shifter (totally different outer to last time)