often I have to diverge or redirect edge loops by re-organising the topology of a geometry.
this is a really simple one that I just realised after a lot of convoluted clickings.. gr....
step 3
Done - orange lines show the change in flow!
edge loop tutorials and theories...
http://www.digitaltutors.com/forum/showpost.php?p=35554&postcount=3
http://www.subdivisionmodeling.com/forums/showthread.php?t=8000 (more advanced theories for edge loops.)
http://zoomy.net/2008/04/02/modeling-with-edge-loops/
http://www.subdivisionmodeling.com/forums/showthread.php?t=907