You can see my rubbers which I used last year. Both of the had 3 months. I play 2 times a week 1,5hour.
http://img208.imageshack.us/img208/8385/acudas218.jpg
http://img23.imageshack.us/img23/6373/t05fx19.jpg
Tenergy is much better than acuda. Of course black rubber always shows more of usage...