*** do_average_coords(): *DIFFERENT* model 11 Res HIS55 Atom  HD1 
 *** do_average_coords(): *DIFFERENT* model 3 Res HIS116 Atom  HD1 
 *** do_average_coords(): *DIFFERENT* model 10 Res HIS116 Atom  HD1 
 *** do_average_coords(): *DIFFERENT* model 13 Res HIS116 Atom  HD1 
 *** do_average_coords(): Expect wrong values