I like to use the Duel map for chat only game - this is the only map I can resist temptation to play it as well.
As for Scorpio it seems full of choke points which is a problem. there is a certain beauty to it though; it would be a shame to waste so much good work. that's why i came up with a game format which hopefully makes a virtue out of this map woes http://warlight.net/MultiPlayer.aspx?GameID=1755419
What do you think?