As I struggled with the scale of the battles from Scotts first book, I came up with a rule for handling the infantry - see my two OOBs from his book for details. In a way I like the scotts solution the best. Applied to Brits as well. My only nagging thought is about the area the unit takes up - currently 3 stands of infantry occupy at minimum a 100 mm x 60 mm front. The frontage of the 1 to 3 unit is fine, 100 mm but that lack of 40 mm is a small problem for those AoE attacks. It also becomes a major issue if the platoon in question is in a line formation, all elements at maximum distance from each other (2"/50 mm ec). Do you do the awkward representation of marks or some such to show where this platoon can be attacked alone its front?? A morale surviving casualties also is an issue. One idea would be to have a platoon be a stand of 5 figures and an additional two figures mounted on 20 mm squares. These figures would be to denote the 'ends' of a platoon in line or one behind to order to demonstrate a 'column' formation of 100 mm x 60 mm depth, thus allowing a good visual representation of the size of the platoon frontage or depth without the large number of figures. It also allows easy visual reference to that all important linkup of two platoons side-by-side, a common attack point to break infantry lines. Note that this is very important in trenches and other fortifications when morale starts to falter. I'll repost the rule I used here in a couple of minutes.
Since this posting, I expanded the concept and dropped the 'boundary' idea as not necessary. As you're using the whole unit, each element counts as three, the space is not really an issue - if incoming fire can hit the on table figures it hits the unit. If it misses it misses all of them, regardless of its AoE for that attack.