egsm900

OK! So...here´s the deal! im going to be new at stunting this summer. I had a kawa 750cc like a year ago so im going to continue with kawasaki. BUT!!! should i go with the 600cc or the 636cc? are they any bigger differences between them, like 600 00-02 and 636 03-04? wich would be the absolute best for a beginner?