BNC digital output for Sony CDP-XA7ES ???

Has anyone ever tried replacing the RCA digital output of the Sony CDP-XA7ES with a BNC to see if it made a better transport this way? (I am not talking about adapters--I mean actually having the output professionally changed.)

I am trying to decide if I should keep the Sony and use it as a high end transport or sell it and spend the money on a used high end transport. Any and all comments and opinions are most welcome!

Thanks!!