Should I Mod a Sony XA7ES with Superclock 2

Hi, I have been thinking , should I Mod my XA7ES CDP. I was thinking of adding a Superclock 2 and getting the output stage modified. I have have been listening to Naim CDS3 , Lynn CD-12 and the Wadia 861, all are Class A including my Sony. I can tell that they are better players. The degree of greater VS the $$$$ I'm not sure at this time I feel the value added.
Q- any ideals?
You might be better off upgrading and / or reducing the number of caps in this unit. I have a friend that performed these types of mods to his similar Sony unit and was elated with the results. Sean