Got myself national w968 and my first impressions are ... it's ok.
It has plenty of power and stability on regular FH and BH top spins, blocking is great too (comparing this to 301x is night and day, 301x is so so flexible, I can't do proper blocks against good players).
The thing I disliked the most is the new H3 OS prov. 39 degrees on the forehand side - it just sucks, it's not tacky and over the table plays lack spin, like, A LOT.
I have older H3 OS on my ZJK ALC and it's very good and tacky and spin is amazing.
I know someone on this forum said this many times, that newer versions of H3 OS prov. lack tackiness...I just had to confirm it myself.
On the FH side (whether it's because of this crappy untacky H3) the blade lacks feeling and spin when looping against backspin and with medium to low power - it went over the table a lot for me.
edited ^^^: when looping against backspin and with medium to low power.
Overall, I think it's in the same league (in terms of quality) with Butterfly Vis, ZJK ALC and other top butterfly blades, however it costs 2-3 times more depending on the number....I can't say it's worth it. I'll post a video with gameplay later today or tomorrow probably using that blade and crappy OS h3
The thing is: I like older tacky H3 OS much more than new BS because it's easier to play and feeling is great (and it's cheaper!!), but now I don't know what to do