The cartridge needs about 50 hrs of break in time. Do not rush it. I use it with a Graham 2.0 deluxe. Check you set up, a high VTA will make it sound shrilly. I use 47Kohms loading, no problem. I like the way it sounds. It is not romantic. I have listened to some Koetsu,s I like, but I know they are beutifully colored. Not necesarily a bad thing, as long as you know what you are getting.
Good luck.
Good luck.