Very rarely have I come across any articles or stories on how or if at all, classical artists used blending materials in their pencil/charcoal drawings. I am quite positive that the Bargue book does not address it either.
I was searching “Bargue blending” and came across the following image that shows the different kinds of edges.
I wonder if any blending material was used in any of them?
Also, why do classical artists keep such a long and sharp point to their pencils. Is it so that they don’t apply too much pressure?