Hello again groffers! I want to thank Tadziu, Deri and Bjarni for their insights on how groff works.
The different behaviour between measurement systems reported by Bjarni is not something I expected, nor something that makes any sense. Nonetheless I managed to understand a couple of new things about groff, which is a tool I really enjoy using it; one of them is how to achieve exact margins, something that's very useful for my use case. Thanks to Branden too, for his answers and his contribution to the GNU Project. Thank you everyone. groff forever! -- Matteo Bini
