Thanks for the replies
OLAF; 8 x 3. Interesting. The very knowledgeable Stuart as you may have already read, recommends 8 x 4. Which is fine, but 8 x 3 makes for more warbands.
..........And this is my point. Trying to get some kind of 'optimum size', and frontage.
I will experiment further.
BILL; Yes, the Roman meat grinder/buzz saw......which I have already met, (albeit the Republican version).
Yes, I'd agree entirely that these rules certainly reproduce it well.!!!!! Eight wide seems to definetly be the number, and 3 or 4 ranks.
I appreciate all the constructive opinions.