sharp definition is possible, and it doesn’t require as much force to cut as proper artists’ lino. The drawback, however, is that material cut away does not easily break off, as it does with ordinary lino, so that a line of PVC is left attached at one end. It is then necessary to use a flat blade to cut the attached end. This is sometimes trickier than it sounds.
With regular artists’ lino, at the end of a cut a simple upward pull with the cutting tool or fingers is sufficient to break off the piece to be removed.
On the other hand, regular artists’ lino can get hard and the effort to cut it can reduce control. Lino gets harder with age so newer lino will be easier to work with. A common trick is to run an iron over it to warm it up before carving, but this needs to be done repeatedly and tends to interrupt the flow of the work. I have found that using better cutting tools is the best answer, as shown below. (These are Japanese woodcarving tools. The Swann Morton scalpel you can just about see is not included in the set.)