I replaced both of mine a few months ago, and was obviously lucky that they pulled through the conduit quite nicely having taped them securely to the old cables. The pulling through was the easy bit compared to getting the gear shift properly re-adjusted to the bravo drive...
Whilst it can be a bit of a hassle to replace the control cables, they aren't very expensive, so given their critical nature to operating a boat, seems like a good idea to replace when needed, rather than trying to save £50.
__________________
|