Just received 2 sets of pulsar points bought here. Little surprised as the cone protrusion of the base and recess of the top cylinder is different between the two sets.
Anyway, to cut a long story short, I find these to bring subtle but noticeable improvements. There was less smearing of notes which helped improve focus and refinement. Certainly not day and night difference but it's there. I had them under both CD player and tube preamp. At times I have to take them out and put them back under the components, and then take them out again -just to make sure they are doing something. I can't hear any difference when they were under the power amp.