IRON BUTTERFLY heads for Doncaster tomorrow with a good chance at a track where she is a course winner. She runs in a 3 mile mares only handicap hurdle and there are 9 runners. She ran very well at Fakenham last time out, as it was her first run after a break. She has been in very good form at home since that run. This looks an ideal race for her and is over 3 miles which should suit her. She is a course winner over 2 1/2 miles but she is better over a longer trip these days. Interestingly when she won at Doncaster before it was also in December and off a pound higher mark so hopefully she can produce the same result again tomorrow.