finally, i got scjp v6; it´s very cool, and after a big effort the results arrived. I spent almost five month studying, but was really the last three month when i put all my effort. initially, i started reading the kathy sierra book (SCJP6), but gradually, when the end was arriving i spent major time in practice with both master exam and mock exams of whizlab. I made around seven practice exams. in order to got the best preparation, as far as possible, i was making my own overview about my weaknesses while i was reading the book, at the end, i just focus in my weaknesses, and obviously, in the practice exams too.