I started trail running this year, absolutely love it! I have started running in my luna's as well, and found them to be the ultimate minimal shoe to run in.
http://barefootgentile.wordpress.com/2012/02/26/lunas-my-go-to-when-protection-is-needed/
http://barefootgentile.wordpress.com/2012/02/26/lunas-my-go-to-when-protection-is-needed/