Let me explain. The tactile sensation of both are amazing. The PLM is slightly smoother than the Zeitwerk BUT still gives the same feedback, tactile sensation, sound, and click feeling you can from the Zeitwerk. Basically it is a smoother and more refined sensation than the Zeitwerk IMHO. Both are special in any case and either one would make a great addition to your awesome Lange collection. My recommendation is to get one of each 😉👍