My fearless 'JC Raulston' is showing a few chinks in its armor. Although if seems excellent outside of these three spots. These pictures give a pretty good representation of the soft spots. I recall people with Agaves in this climate will sometimes have a black spot or two from the winter abuse. Or a dead leaf or two.
I think the first picture will be a permanent dead, black spot. I think leaving it alone will be fine.
The second two pictures reveal some localized damage, softening where you see darkening. The lighter portions of the leaves are still solid. The last picture of course is the most severe and I would definitely remove this leaf entirely since it is at the bottom of the plant anyway.
I think waiting until Spring would be the time to do any minor surgery. This February is very likely to bust our February rainfall record, not to mention being consistently colder than average as well.
