I have been building knives full time for going on 19 yrs and I have always had one simple rule for the shop. When I make a "copy" of an original or a "historically inspired" (NO fantasy stuff) knife, axe or hawk if I build it using the same methods and materials that was used on the original then I should be able to turn out a good working piece that is true to the time period. Folks seem to like the results or I wouldn't be in business still.