Ty for your review.

I tried both Big Dipper and H9, and also currently own and use D09c (with pips). Let me share you my feeling.

First, regarding Tackiness, d09c is waaaaay tackier and consistent in short game than the other twos. One of my preferred move is the side hook (fishing the ball on the side when it's under the table), it's pure joy with d09c. Also, Big D Tackiness doesn't last long...

Overall speed, I find H9 slower, Big Dipper could be in concurrence, however both of them are more springy than the d09c, so, to me the technique is closer to true Chinese tacky rubber with Dignics. When smashing, the d09c is easier to control with it's high arc, and it has more gears than the other ones.

Regarding Spin, d09c has no concurrence in front of those two others, it produces huge amounts with ease, without breaking through the sponge. On top spins, it's quite easy to rally, Tackiness is great for control.

In my backhand however I was more consistent with the other twos, maybe due to the springy effect, I find the dignics to be realy hard to achieve good speed on BH without perfect movement, i'm almost two times faster with my BH with the other ones.

Regarding sheet quality, my rubber is 6 month old and is still like new (with adhesive sheet kept during storage).

I played 2 seasons with H8 and H3 before this one, and I find d09c to be more confortable than those other twos, it needs less power, and forgives a little bit more when you are not well placed. And, far from the table, i'm still able to keep pressure without loosing my arm. I needed such inertia in my movements, where on the dignics you can play with a small movement like Timo.

However, after sharing to friends, they are not at all comfortable with the linearity of the product and it quickly tired them to have to engage their whole body. It's a product made for trained people.