Nittaku Fastarc C-1

Out of the Fastarc series, I honestly think this one is the most "meh".

Compared to G-1, the white sponge on the C-1 is weak and lacks dynamics. It's essentially a tensor rubber, with the feeling of a classic rubber.
The sponge also shrinks dramatically. More than Rakza 7, which I already found ridiculously shrinky, C-1 actually curls up to the point where applying glue is simply not possible. Reviving the sponge with booster only partially works, and when regluing you're going to need to stretch it out to fit. I have factored this in when I scored its durability.

The topsheet is what saves it, and gives this rubber its good capabilities: it's very easy to spin up, down, sideways, and create heavy (but slow) stuff using large movements. The grip on it is up to par with pretty much most tensors and the topsheet basically feels identical to G-1.
The problem is, the topsheet far outlasts the sponge. So while your rubber still looks fine from the outside, it plays more dead by the hour.
I cannot, in all honesty, recommend this rubber, and all of that is down to the rapid deterioration of the sponge. If you like the topsheet, just go to G-1, or get P-1 which seems to have a similar sponge to the one G-1 has.

Very easy to control rubber without any weaknesses, but also without any real strenghts.
The Fastarc C1 has got a medium sponge that performs well with an allround offensive playing style. Topspins, even on heavy underspin, are easy to play. Passive blocks and counters can be played without effort. It also provides decent spin in all situations. Compared to T05 or Fastarc G1, the rubber is less sensitive to incoming spin.
all in all a very good and quite easy to play rubber for everything. The only bad thing about it is, that it does everything good, but nothing extraordinary.

This rubber is a beautiful alternative to Fastarc G-1 for those who prefer rubbers of medium softness.
It provides a lot of safety for looping backspin balls and has a great balance of speed, spin, and control.
Another bonus: It weighs less that G-1, as expected. Perhaps I am imagining this, but the top sheet seems just a little softer than that of G-1.
A great, well-balanced rubber.