Thanks David, can I be a bit of a pain though and put this to you? .....
My (British) infantry are based in 6's, two ranks of 3, 12mm frontage per figure, giving a frontage of 36mm per 3 figs close order.
If I form them up into open order, with a space between them of half base to a full base (page 24, point 6) that gives an effective frontage of 54-72mm per 3 figs.
If I use my purpose based skirmishers (15mm per figure) with no spaces between bases that gives an effective frontage of 45mm per 3 figs.
Page 24 states that open order troops were "nonetheless significantly closer together than units deployed in skirmish order." But the above frontages don't tally with that statement.
Am I missing something, given that I'm not very experienced with the period?
Thanks in advance.