How is it that you ensure your planned armies are created in the shortest possible amount of time?

One of the worst peacetime setbacks I have suffered has been due to poor management or order of buildings, with the result that only certain provinces are truly useful for recruiting, and in the worst case, a few scattered at different ends of the kingdom.

How have you each seperately avoided this?

When you play your mod in your favourite era, what is the structure of a common field army for you, and how is it recruited?

In my largest campaign, I had a Scottish empire which controlled all of France, Denmark, Scandinavia, Aragon, Northern Italy and half of Germania.
But other than for reinforcements or reserves, common FMAA and other such units were hardly used from the continent, and Britain became my major troop producer.
Special Scottish Infantry were trained in Northumbria, Mercia and Scotland; Longbowmen in Wales; Royal Cavalry in Ireland, Wessex, and Sweden; and the artillery train was trained in Denmark-Scania.

A full army of 1800 men took two turns to recruit, and on the third it would be formed in Friesland for service.

This artful organization is part of the enjoyment for me, and I am interested to hear what others have done to make their empires efficient..