I think the actual fact that they have race ridden is the biggest factor plus the media training is noticeable as they grow in confidence. and actually
Here's my run-down of those on mainstream:
Jason - superb and actually puts his tips forward and they win!
Hayley - growing on me as she does more
Cumani - was a "steering job" amateur on good things before anyone suggests she was also a jockey and I do not feel she adds anything bar eye candy, Australian obsession and fashion promotion.
Adele Mulrennan - think her input especially beforehand is excellent.
Ruby Walsh - is superb on his analysis of races too.
Leonna - OK
Mick Fitz - bearable but has a Hendo bias
Luke - I don't mind but I do get why he grates
Matt - at least he will challenge the controversial points although he's not likeable
Kevin Blake - I do rate his opinions highly and feel he's worth listening to
Chamberlain - well there has to be an anchor but he irritates and I really want to pull that middle tooth out
Oli - so so and a fair anchor when needed
Rishi - has improved way beyond what I thought he could and I don't mind him now
Ken - I hit the mute button - telling everyone the favourite looks good is not a job!