The Sumiko Sterling was like that when I first installed it in the high frequencies. It was like "hey see how bright I can be"! That was with a Warm, slightly dark Marantz Reference amp made to sound like tubes and a tubed phono amp with wide open ceramic tweeters. But I knew after a good run in it would settle down...and it did. I think you should be ok after it gets done doing what it does. Every cartridge, new goes through the changes whatever it may be. I can't imaging its going to continue to be emphasized as if the upper mid frequencies are made to be much more so than the rest of the sound....and besides......no one I know who has that cartridge and who really understands audio has a issue with the cartridge. But avanti,.....It could be that the Audio Technica Art carts are just your cup of tea, more so that the others cartridges/brands you've tried. . Certainly nothing wrong with that! And I don't think you are one to succumb to peer pressure. So if its not you bro, its not you. It does seem we advocates all have maybe been trying to get you to really like the car, and me because its very akin in sound to my Sumiko Sterling....but still....perhaps more that we should.