Just received my V3 insert, one thing I notice compared to my V1 is that the platinum plating on the V3 is thicker/deeper so the number are not as recessed as the V1, they are almost flush with the surface ceramic, not quite but not as deep as the V1. I much prefer the colors of the V3 but wish the numbers were engraved deeper or a bit less platinum applied. I know some people have had issues with not enough platinum plating filling the numbers on other versions, but on the V3 version I have they may have slightly over compensated with too much platinum filling....