I haven’t seen this method of proofing on any other linocut websites (and there are quite a few!) but it may be because I’m always trying to squeeze more detail out of a fairly “coarse” medium.
This video goes into the process of proofing with a rubbing, in order to see what is actually cut. Since the process is to do a black line drawing on the lino, then cut away everything else, it’s often difficult to “see” the cut areas clearly as work progresses. The rubbing reveals all this easily.
If you’d like to comment on this or any of my posts, you can email me at dickens@mooneyart.com