I have used OHSW for a number of periods 1600-today. For this scenario we had around 15 miniatures per side but I see no problem to double that, given that the game would probably be 2-3 hours. If you use army or cavalry units we use the rule(as you can see above) that a number of soldiers under an officer can do the same action if they are within command range. That rule makes it possible to go even further, maybe 30-50 miniatures per side, but then you divert even further from the "one-hour" idea
Thanks for that most appreciated. I used OHSW rules quiet a bit a few years ago, then drifted off to FFofL Bigger Battles.
But, I'm suspicioned that what you've just told me, would be perfect, for the Long Knives and the Redskins!