Recently tried the Mizuno MZ63 on my Li-Ning N9II. Not much details can be found online, but general review is that it feels medium hard, repulsion is good, like Li-Ning No.1. https://www.mizunobadminton-asia.com/copy-of-box-towel-grips
How do feel about the string after trying it out? Can make a comparison with 66um and no.1? Mizuno also hv MZ66 (0.66mm), hv u tried that too?