Hi Brad,
I loved the Osprey Louis XV series (5 booklets) because it was illustrated by E Leliepvre. His drawings are always so lively. There was only one booklet on Louis XIV's troops to my knowledge. I didn't like the drawings.
I have two of Carl Franklin's books on Rocket troops and British Artillery. Very nice clean schematics. However, I understand that his books on the British Army have some errors in the lacings and colours.
Rgds Vic