Favoured Personnel effects

In terms of numerical, tangible figures. What effect does two players having each other on their Favoured Personnel lists make?

A reduction in jadedness? A percentage slowdown of negative effects happening on the player? A percentage increase in rate they gain ability points?

Yet another one of those wonderfully vague feature implementations that frustrates me because I can't calculate it.

My guess would be an increase in adaptability when playing in the same team.

Bestie.

good question, CP, would be interesting to hear if it does have any effect at all....

There's a pop-up tip saying that it does have a positive effect. But nothing's quantified in the game, the manual or on the forums.

Increases squad harmony, whatever that actually means.

Aah squad harmony. Another unexplained phenomenom.

I take it you mean if they are already playing for the same club? Afaik it makes it more likely for a player to sign for a club if someone on his Favoured Personnel is already there, and if there are playing for the same club already, chances are that if you sell one of them, the other will be unhappy with you.

For two people at the same club. There's a pop up tip saying there are benefits, but it doesn't say what or how much.