Well in fact after giving it a first thought I come to the conclusion that in an attack sequence,what is important is the relative positions of your target and your own sub.
So in fact it makes no difference if you draw the plotting at the place where you really are or anywhere on the map. You could even do it outside of the map ...
So I think when I have a contact I will just mark my position where I think I am and do the plotting from there (my course and target course) Will see...
