@Furyan I tried a pack of JP58 Magnite strung at 26/28lbs on NF700Pro. Played yesterday for 4hours, surprisingly it didn't snap, considering it's thinner than Aerosonic. It moved around a lot but it felt similar to my usual string (66UM).

Will keep using it this week to see it's durability. Will update more when I get more strings to test

Has anyone else had a chance to test out any of Hundred's strings yet?
Do we know who the OEM is? They're made in Japan, so presumably Gosen or Kizuna (do we even know who the Li Ning OEM is?)

Their range / packaging makes no sense to me.
What's the difference between the 63Z and the JP63 Hunter?
Why does the JP66 Hunter have a lower durability rating than the thinner JP63 Hunter?
And why is it called the JP66 Hunter if it's only 0.65mm thick? How is it different from the JP65 Magnite?
And then there's the 66X Boost, 66X Pro and 600S that actually are 0.66mm thick...

Li Ning No.1 has been my go-to string for years now, so I'm looking for something similar or maybe slightly thinner (not too thin, as restringing is expensive and inconvenient here).

Hundred has recently given this chart hopefully you find it useful

I've used the Hundred JP65, 66 X Pro, and 600s, here’s a brief review on all 3. (all strung at 27x29 LBS)

Hundred 600S
The price is amazing, and feels decent as well. Repulsion is quite nice, but it’s a step below the 66X Pro. Durability is a little below average for me, lasting between 15-20 hours in my experience. Overall a decent string, not a particularly extraordinary, but good enough, especially considering the price.

66X Pro
A little step up in price, but a step up in performance as well. Repulsion is a bit better, but this string loses tension a bit faster than most in my opinion. As the string is about to break there is definitely a “dull” feeling, similar to how BG80 becomes dull toward the end of its lifespan. I’ve had one instance where the string seemed to have a defect where the outer coating seemed “weak" and started fraying during stringing, but it was just one specific unit.

JP65
My favorite string that I’ve tried both from Hundred and in general. The repulsion is amazing and the hitting sound is nice and crisp. Super easy to string as well. Control is great, power is also amazing. Great string overall, I’d say the feeling is similar if not better than a newly strung BG80. Durability wise it’s not bad, average for me. The nice thing is it doesn’t feel too dull as time goes on.