LONDON Decca, Tzar DST and similar cartridges

I generally prefer my system without the loading kit because the music is more robust and has more room-filling energy and impact.
With the plug that brings me to 33k/220pF plug the energy lessens and the soundfield moves back toward the speaker end of the room.
With the plug that brings me to 15k/220pF the effect is even greater and soundfield is almost entirely behind the speaker plane.  The music is also somewhat anemic.

What I like about the effect of the kit is that the music become more coherent.  I get a better sense of where the musicians are and what they are doing.  The music is also slightly more nuanced.  I suspect this is a function of the increased capacitance rather than the decreased resistance.  I'm going to try and experiment with both by ordering more plugs that contain either just a capacitor or just a resistor.

The kit has really opened up with burn-in so disregard the previous post.

Ok, I received the 2 plugs that just contain a resistor and the 1 plug with just a capacitor.

As much as I wanted to like the London Reference at 15k or 33k, in my current system it sounds best at 47k.

Adding the capacitor to bring to total capacitance to 220pF, however, has a very positive effect. As I said above, "the music becomes more coherent. I get a better sense of where the musicians are and what they are doing. The music is also slightly more nuanced."