Hey, so I recently got my NRZSP and managed to test it out. It is strung with BG66UM @ 27lbs and with a fleet overgrip without original plastic coating removed. (I like my grips thick) Swing: This racket feels slightly even balanced at first grip, but when you swing it, you can feel it's head-lightness. The sudden acceleration of this racket is immense, so it takes time to get used to. Clears and smashes: This racket can produce crisp clears, although not as easy as the VTZF. When using this racket, you will realise that it takes more arm strength in comparison to head heavy rackets, but the fast swing helps somewhat. Smash-wise, this racket really performs. You can't feel the same kick as the VTZF, and the power isn't there, but the speed of the smash is outstanding. It catches your opponent off guard due to the quick acceleration of the shuttle. Nets and drops: Being a headlight racket, it is easy to play these controlled shots. The soft touch comes easy, and its quick and manoeuvrable, so trick shots can be executed easily. Defence: This is another area I think the racket really excels in. The seamless movement of the racket allows easy and quick returns, so you can get back into position as soon as possible. Returns are controlled, and are never out of hand. High returns simply require a harder flick and the bird flies. Overall, I feel that this racket is everything Yonex hyped it up to be, and it truly deserves to be the VTZF's succeeder, and it is suited for everyone who wants a fast paced game.