My modified unit has not come back yet and thus I have not posted any comments.
I will be keeping my existing Pioneer BD in the system and thus it will be easy to a/b betwen it and the modified Oppo as i have duplicates of a few discs.
I used the stock Oppo 93 unit for a couple of days before sending it back for modifications so I have a sense of how it performed in my system initially but I have since changed all of my speakers and thus will not be able to tell how much/little improvement there may be on the audio but on the video side things have not been altered.
I should be able to post my initial thoughts on the modified unit within a couple of weeks.