Thanks everyone! Yeap, it seems like every upgrade requires hundreds of hours to really provide the best benefit. It's ok with me, I don't loose any sleep over that, it's part of the journey. :snicker:
I am very pleased with the upgrade. I have heard improvements across the board. Better and more defined bottom end. Soundstage is bigger than with the Black Mambas. I'm also hearing more extension on the high frequencies - more detail. A very worthwhile upgrade.