It's often no use betting in big races unless you get big double figure odds.
It's been proven time and time again.
You cannot make money long term just backing a jockey.
You also only know a jockey is "hot" after a big string of winners are in.
If punters as a group decide to follow a jockey then the horses will become even poorer value so the punters will lose even more long term.
There are no quick and simple ways to win over the long haul.