My units are set to Decimal Inch. Yet the grid is in 1/12; 1/24, etc… I drew a line between grid points and this is indeed the case.
It would seem to me that the 1 in. Grid should be subdivided into 10 x 10?
Is this a bug or am I unclear on the concept? BTW I worked in Europe for several years and am familiar with metric and 1st vs 3rd angle projection difference.