Modifications for WSS with the Black Powder Rules, now all nicely published as an 8 page PDF
http://lasthussar.wordpress.com/2011/02/01/war-of-spanish-succession-for-black-powder/ (http://lasthussar.wordpress.com/2011/02/01/war-of-spanish-succession-for-black-powder/)
(Constructive) Replies on the blog always welcome.
Nice to see you so keen on this period. I don't have or know anything about BP so I can't offer any advice, constructive or destructive, regarding mechanics but I like what you've done to achieve the WSS flavor. I'm pretty solidly sold on Ga Pa and Polemos GNW sets but also like Ian Croxall's Blenheim 2004, see link. They provide a quick play of large battles without figure removal and the site has some good general WSS info.
http://www.warflag.com/blenheim2004/documents.html