Hmm, interesting question EI - if I can get hold of the raw data I may run that through and see what the results are.

Out of interest how long have you been betting on each of your five jockeys (if you don't mind me asking)? Also if you were to give Munce the boot would you replace him with a different jockey or just wait and see if he comes good again? Finally how do you select your jockeys if you do need a new one - is it based on who is leading on those tables, a gut feeling, or do you run a simulation of your betting on other jockeys or is it a combination of these?