*** do_average_coords(): *DIFFERENT* model 3 Res HIS124 Atom  HD1 
 *** do_average_coords(): *DIFFERENT* model 6 Res HIS124 Atom  HD1 
 *** do_average_coords(): *DIFFERENT* model 7 Res HIS124 Atom  HD1 
 *** do_average_coords(): *DIFFERENT* model 9 Res HIS124 Atom  HD1 
 *** do_average_coords(): Expect wrong values