Did they fix the early ZST issues? People didn't like them at release.
I have one of the early ones and the sound is a little bright but I also have the KZ silver cable which adds to that. They are very fit dependent for me, I can get the SQ I like if I fiddle with them, currently using them with Mee Pro 6 single flanges, have tried the KZ foams and Spin fits but like these cheap tips with it. Have not heard any of the latest releases and doubt I will.