A little off the original topic but in relation to the title correct weight.

Does anyone considered in there ratings the effects of a jockeys weight and the lead weight put into a horse.

For example.
If a horse is handicapped at 59kg and has a 58kg jockey + 1kg lead vs. a 52kg jockey + 7kgs of lead.

Sometimes the extra weight from a jockey could be viewed as extra muscle hence more power etc.....

Food for thought!