Its very supple stuff, so I can't see it having the same issues as lead core. If you get a length of it and put it in the margins the stuff literally disappears as its so heavy it sinks into the top silt layer.
I've never seen a hooklengths like it either. I've only used it in the heavier strengths (80lb I seem to recall) for cats in Spain and for redtails and arapiama. Very abrasion resistant!