1. Yinhe Pro 01 is just like Viscaria. Medium hard, but little flexy, and very ballanced blade. Spin shots are equaly fantastic as flat hits. The blade is powerful, but control is still very high.
2. Yinhe 970xxA despite inner structure is very similar to Pro 01 in therm of hardness and speed, but somehow less flexy, the feeling is less clear, control is worse, especialy soft and medium soft shots are not clear. I had a problem with dosing the force put into shots.
3. Yinhe Pro 05 is very flexy, and extremely spinny, but has the same problem as 970xxA, control and feeling in soft and medium soft shots is not clear. Powerful topspins are awesome.
4. Yinhe V14PRO is almost same as Pro 01, but little harder, also very good at every aspect of game. Good for looping, hitting, good spin, clear feeling and good control.
5. Yinhe V16 is the hardest and fastest one, but despite hardness and high speed is still very good at every aspect. Feeling is clear, decent control. It's just like harder Viscaria.
My conclusion: outer structure blades from Yinhe are definetely better than inner structure ones. DHS inner structure are way better. DHS Pg7X, 301 or Fang Bo B2, and even Pg5.