It depends on who it is. All in all, I'd say 7.
...I tend to occasionally pre-know things.<br />
But it's pretty random when it happens.<br />
...So, nah, they don't know, which is why I've never asked.
Do you notice how they are so cunning that they'll ask probing questions in such a way that you don't realize that you're giving them the answers. So it doesn't take any smart person that long to piece together those small hints and work out the result. They just tell you what you've already experienced to make you think it's working so you give them more hints and they get paid. :)
Some people are very good at reading the lay of the land... but I'm not keen on paying for advice so I trade.
5, I think they have things to say that you should actually listen to but the rest of the time you should follow your own intuition
0%. However, I have a 100% belief that they are there to make money from me.