Persimmon and screw placement

I am eyeing a few persimmons on ebay and had a question about the screws on the clubface. Are there any advantages/disadvantages with having a screw right where the ball impacts the clubface vs down the side of the insert? Here is an example of a wood with a screw in the middle of the face: … 644wt_1110. Thanks!

I think it is basically an aesthetic thing. I always like to see some screws in the insert personally.