Keilwerth ICON Nickel S-Neck Tenor

I was really a non-believer that a change of neck could be an issue - but thought I just as well try it out for real to establish facts. But I was wrong.
It made my Keilwerth tenor a better sax, and the difference was clear. Quicker response and more open, bigger tone. So I had to keep it although the price point was high. And after 6 months I still use it happily every day.