The more I play with a particular fleet, the more I find myself flying that fleet in roughly the same formation. I've found that as I'm building fleet lists, I spend as much time considering how I will arrange the ships and space them out as I do picking out upgrades.
I ended up writing a series of posts on my blog about flying in formations, and this is my shameless plug:
http://concentratefire.blogspot.com/p/out-on-maneuvers.html
But I'm curious is anyone else thinks about this or if you fly different patterns with each game? What kind of formations have you found that work for you?