Wrist curl question

[aatu]

Hello,

I just remembered something I`ve been meaning to

ask since I saw pictures of Mr. David Horne & some other

people performing the table top wrist curl in his competition.

In those pictures, Mr Horne & the others who are performing the wrist curl grip the bar with their hands very near to each other.

I would like to know why? Is this the best method to use when wrist curling?

Personally, I`ve gripped the bar with my hands about shoulder width apart. I`ve actually never even thought of doing it any other way.

Thanks for your help