There have been no reports or observations of externalized conductors in these newer Optim-insulated leads, out of over 65, 000 of these leads sold worldwide since 2008.
"Usually, it's a note here or there or a missing dynamic indication, which will be weeded out by conductors, musicians, librarians or musicologists, " says Mr. Orenstein, a Ravel scholar of 45 years and the author of "A Ravel Reader" (1990).