Corner taker

[Dolce]

Hello! I have some questions about corners:

1 Wich are the best players for corner kicks? Right/left defenders and midfielders or it doesn't matter?

2 Is the foot of the players important at corner kick or the foot is just for design?

3 How much bonus in crossing recive a corner specialist i? For example i have a player with Corner Specilist ability with 85 in crossing and another player with 95 crossing without speciality..Wich1 is better?