I do not want to over cook the meat here, and I know this info is concerned with Fiji but we do know that some special tools and implements are associated with these activities. The new materials and technology spread through the region. This is rather wordy but well worth the effort. Scroll to page 13 subtitle cutmarks, read metal implements. .
http://www.stanford.edu/~degusta/Hom...%201999.pdfnts.
the first link did not seem to work
http://www.stanford.edu/~degusta/Hom...sta%201999.pdf