From my limited knowledge of that cable - some first hand, some second hand - I'd say ...
It's known to be a very good cable where the elements have been kept out. My brother was an electrician on an old ship (Italian, early 50s) for some time - he said that they had problems at the ends (perished rubber, salty moist atmosphere), but stripping it back a few inches would get them back a good IR. Similar problem where the sheath was damaged. In that respect, very much like MICC.
I did a few weeks on the same ship (voluntary work), and can say that the original wiring was a similar work of art. All cables carefully arranged, all clips made for exactly the bundle of wires it was holding, and so on. Even picked up a few words of Italian - well you had to, everything was labelled in Italian.
But I digress. If the IR is OK, and the rubber is not obviously crumbling out of the end, then I'd suggest not touching it. Unfortunately, given the neatness of installation it's unlikely that you'd have the luxury of cutting back a couple of inches to get to fresh rubber. MICC will be a lot harder to work with - both stiffer, and absolutely needing proper end sealing. Any unsealed end will absorb moisture and your IR will drop quickly.
It's known to be a very good cable where the elements have been kept out. My brother was an electrician on an old ship (Italian, early 50s) for some time - he said that they had problems at the ends (perished rubber, salty moist atmosphere), but stripping it back a few inches would get them back a good IR. Similar problem where the sheath was damaged. In that respect, very much like MICC.
I did a few weeks on the same ship (voluntary work), and can say that the original wiring was a similar work of art. All cables carefully arranged, all clips made for exactly the bundle of wires it was holding, and so on. Even picked up a few words of Italian - well you had to, everything was labelled in Italian.
But I digress. If the IR is OK, and the rubber is not obviously crumbling out of the end, then I'd suggest not touching it. Unfortunately, given the neatness of installation it's unlikely that you'd have the luxury of cutting back a couple of inches to get to fresh rubber. MICC will be a lot harder to work with - both stiffer, and absolutely needing proper end sealing. Any unsealed end will absorb moisture and your IR will drop quickly.