As you know, in this period regiments, squadrons and troops varied enormously in size. For this reason, we are currently looking at cavalry units of 120-180, representing a tactical unit which could contain a number of troops, or even squadrons, but at the extreme might just be part of a regiment (say the NMA at Naseby). I think we are open to alternate points of view, but in creating rules which can cover the small regional battles up to things like Marston Moor, this seemed a useable baseline. Any smaller, and the large battles would really bog down under the weight of the number of units in a wing. Any larger, and the smaller battles would be hard to represent. We also have to consider the relative size of horse units to foot units. Here we are trialling 400-600 foot units against the 120-180 cavalry units. It seems to be working, but we will see how more play testing makes it look!