I got lucky and bought my Holy Grail in China from Bora Wang, the Chinese player who played for Turkey. It was expensive, even in China. 650 RMB which equals around 70 EUR at the time.
I opened the vacuum sealed rubber and added three thin layers of Haifu Seamoon booster. This might not be required, but I wanted to feel the true experience. The rubber is rated at 41 degrees, which is quite hard, even for Chinese rubbers. That is why I added the booster.
If you have played with any other national versions of the Hurricane 3 rubber, you will feel right at home. At first, this rubber had a distinct "ping" sound. After around 5 hours of play, this sound faded and the rubber became softer and came to life. There are two reasons to use this rubber.
1. Spin. This rubber has ridiculous amounts of spin. This gives a very characteristic arc when looping. Tossing spinny serves is easy.
2. Control. What you play, the rubber answers. There is a linear function of input and output. If you touch the ball softly, service returns will be short. If you swing at full power, the ball will explode from the racket. It is very difficult to do flat hits. You have to really work with every stroke. Counterlooping is much easier compared to tensor rubbers, since the rubber will grip the ball and reverse the spin.
The rubber is slow when using incoming speed, everything has to come from your stroke. This is a direct consequence of the control that this rubber has. For me, the advantages overcomes the disadvantages. This rubber is very similar to a 41 degrees regular Hurricane 3 national orange sponge. The main difference is a bit more bounce and a less tacky topsheet.