At my club, we've been using Bloody Big Battles for a lot of 19th century games; mainly FPW, but all sorts of others (using their scenarios). We are plannign to do a demo of Balaclava in 2mm at my club's show, Warfare, in November. Having played the scenario through once, it all seems to work well.
Most of our games have been in 15mm, with some in 6mm. Whatever scale you use, the rules work fine.