If the grip is still there, wouldn't the rubber play mostly the same, except get slightly faster over time as the tack goes away?
my 09c is around 6-8 weeks old by now. used for 2 hours daily.
First of all I dont feel there is anything "tacky" about 09c. its my understanding being able to lift the ball off the table with the rubber is a sign of "tacky" right? In that case my 09c didnt lift the ball. Maybe few cm off the table. But I see even ESN rubbers do that sometimes.
So its confusing to me to hear people mention the "tackiness" is lost on 09c. As to me it was never really there.
It has a great GRIP on the ball during play.
Now I bought the 09c as I saw many people mention it last a long time. So far im 8 weeks in or so. And I feel its just the same as day 1 I used it. Not even deteriorated a little. I know this because I have new 09c as well on another racket I dont use. plays identical. And I store this rubber with fresh cover sheets so its not exposed to air or light.
As for some people saying 09c isn't good for looping or other issues I will say this: 09c isn't for beginners. Its not an easy rubber to use. If your rating isn't high enough you shouldn't use it. And shouldn't have opinions about it. Its like asking a hearing impaired person for advice on great High End audio systems. There are too many keyboard experts readily willing to give a discourse on some equipments flaws despite they have 0 clue on how to properly use it.
I can easily see how I can utilize the rubber and my own limitations. It gets even more apparent when I lend my racket to a Pro player and he shows me how its supposed to be used.
This is a great rubber. It can do it all. If you know how to.
And it will last a long time if you take good care of it. As far as I have seen on my friends 09c's expect 6 months. maybe longer.
My hybrid k3 lasted just 6 weeks or so.
My Nittaku G1 lasted over 8 months. maybe longer if I had kept it on.