All of my recent 28mm ancients gaming has been with Commands and Colors on 5" hexes. The rules work exceptionally well with colorful miniatures.
I have been adapting my DBx-based ancients to the rules, and the last change is to provide smaller command bases. These three generals are all I need for Republican Romans.
The Napoleonic commission is still in full swing. I hope to have the Dutch-Belgians on the blog within the next week!