Egan has made a nice mod making you little more busy when travelling over "Bay of Biscay".
You find the post here and scroll down a bit you find the DL link.
http://www.subsim.com/phpBB/viewtopic.php?t=42716
It works really nice!
One thing though, TC effects the intensity of air encounters!
Don't exceed TC more than 256, or it will be much less airtraffic!