The English sytle case has compartments separated by thin panels. The compartment are made the size of the gun or accessory but are flat sides so things can move.
http://i168.photobucket.com/albums/u...ps2119e98f.jpg
The French style is form fitted. The outline of the gun is carefully sculpted into the case material and lined with material. There is no movement as it fits the outline perfectly.
http://s168.photobucket.com/user/ski...%20LP53%20Case