*** do_average_coords(): *DIFFERENT* model 11 Res HIS27 Atom  HE2 
 *** do_average_coords(): *DIFFERENT* model 3 Res HIS82 Atom  HD1 
 *** do_average_coords(): *DIFFERENT* model 4 Res HIS82 Atom  HD1 
 *** do_average_coords(): *DIFFERENT* model 5 Res HIS82 Atom  HD1 
 *** do_average_coords(): Expect wrong values