There is but that would become apparent when it’s gone. Tonally it can be OK (and even just right) because Mark has carefully tuned the system around it, but certain major compromises are unavoidable with this type of wire. The ear is very sensitive to arrival phasing of a sound deviating across its spectrum, this is why having a more linearly aligned curve for the signal’s propagation velocity is so important. (If you’re interested Galen has lots of info on this forum and on his site for the Iconoclast design principle)