*** do_average_coords(): *DIFFERENT* model 7 Res HIS1 Atom  HD1 
 *** do_average_coords(): *DIFFERENT* model 9 Res HIS1 Atom  HD1 
 *** do_average_coords(): *DIFFERENT* model 10 Res HIS1 Atom  HD1 
 *** do_average_coords(): *DIFFERENT* model 12 Res HIS1 Atom  HD1 
 *** do_average_coords(): Expect wrong values