Don't get rid of the BDR source! I would get three BDR cones (which ever flavor 3s or 4s) and put them on top of the source , pointing up. Place your player on top. You will notice a big improvement. Things open up and there is even a greater sense of ease. This configuration is one of ther reasons why a shelf or source is so good.
What do you have under your Black Diamomd Racing
I have a 19'' X 15'' Black Diamonmd Racing '' Source '' Shelf and I have three inverted Polycrystal Reference cones underneath it for isolation. My transport is on top.....CEC TL-1 about 40 lbs. What are you using outside of any BDR sones, pucks etc. to support the shelf....Or, get rid of the ''shelf'' and use something else on the top shelf of equipment rack ?