It will come out fine. But as far as penturning, you may not find
a difference when using it or not. If the pen is dirty, it will clean it.
If not, it won't . But then a damp rag would work, too.
If you think of these polishing compounds/liquids as sandpapers,
the Novus 3 might a medium grit paper, while the Novus 2 would be
a fine grit paper. The Novus 1 would be a dusting cloth.
As far as I can tell, the Novus 1 doesn't really belong in the same
lineup with the other two, because it misleads people into thinking
that it is almost the same product, only much finer.
In truth, they might only share a brand name.