Come on guys. Read what he is asking. He is using a $15.00 rubber and he is asking if 2 $25.00 rubbers would be okay for him. He is not asking for top of the line tensors as a jump from old school inexpensive rubbers.
Krasi Ivanov, to know what would be good for you we would actually have to know how long you have been playing, your play level, whether you loop or smash, whether you play defensive, allround or offensive. Seeing video would be useful. But if you give enough details about your skill level and play style there are people here who can still help you.
The rubbers that Yogi and Oscar recommended are great rubbers but they would be a giant jump in price and in spin sensitivity.
What do you actually hope to achieve by changing rubbers.