No, this is not correct. The list of inlay materials that are offered from year to year vary. I'm guessing that the list is based on the quality and quantity of material that can be acquired, and CRK preference. In earlier years, for instance, nice, large pieces of mammoth ivory bark were available, and CRK inlaid some of the nicest bark pieces in their LE Sebenzas that I've seen from any maker, custom & production alike. In recent years, however, it has been nearly impossible to get large, high quaility bark. As a result, CRK has not offered bark in the LEs.