I think you can drive yourself mad trying to find the ideal - thicker 180-200g pressings will cause the arm to be more 'tail down' compared to older 120-150g discs, making the sound more bassy and less defined (to my cloth ears anyway).

And Shibata stylus profiles are reportedly more critical then say eliptical. That is my understanding, but I could be mistaken. I certainly didn't want to have to go to the lengths of changing platter mat thicknesses to suit, so changed my 2M Black for a "lesser" Quintet blue, and no longer think about it.