So I desided to try the BG66 series on the rackets:
Nanoray 700RP
Power: BG66U
Nanoray 700FX
Control: BG66M
Also prepared some rackets to test. Fist thing I wanted to know, is which racket(s) are built on the same concept of the NR700 series. I have the NS9900, NS9900S and the NS7700 here and took some pictures:
So we have the NR700RP, NR700FX, NS7700, NS9000S and the NS9900. First the handles:
You can see that the handle of the NS7700 is the shortest, but the longer cap makes it longer. The NR700FX has the second shortest, but it's not a lot. The NS9900, NS9000S and the NR700RP are almost the same length. Next we look at the heads:
The funny thing about this comparisation, it that the NR700 series has the same thickness as the NS7700. The NS9000S has a less thicker frame and the NS9900 is the thinnest of them all by far. I would have expected similarities with the NS9000 series, but the had looks almost an exact copy of the NS7700. There are some small differences:
If you look closely to the picture above to where the tube sink in the frame, the frame also suddenly becomes smaller. The frame on the NS7700 is more equally getting smaller towards the top.
Even all positions of the tubes are the same. Some positions where the main strings and cross strings will cross, the NR700 only use the newer oval ones.
Even the inside of the head has a line (Inside of the Power Armor frame) which is the same, but that from the NS7700 is a little shorter. So I decided to read what was unique on the Nanoray 700 series and one of them was the unique head design which was wide on the lower half for more repulsion and thin on the upper side for less air resistance. But as far as I can see, the widebody isometric frame, is almost the same! Just to be sure, I also measure the thickness of the upper frame (not how wide it is) but the top of the NS7700 is even smaller!
So my first conclusion, if it's unique, it's not optical. The NR700 will be more suitable for doubles compared to the NS7700 because it has a longer handle. In terms of air resistance and balance, it's very similar. To answer Kristian's 2nd question: I also manage to swing all these rackets, but the NS9900 is the fastest of them all. You can even hear the difference because the tone is the highest of the NS9900 and it also is the fastest (not sound only). The air resistance of the NR700's are almost/exactly the same as the NS7700 and the NS9000S. If there is any difference, it has to be the material used in combination of the frame design. Pure based on the design, it is an advanced NS7700.