It is possible to get 100 % in scjp. You just have to work a bit harder than usual. Read K & B over and over again till you understand absolutely every thing ( But since you have your exam on may 2 , i would suggest go through as many times as you can and dont forget the two minute drills!! Read them before the exam.From my personal experience i can tell you that they are really helpful )
After that its upto taking mock exams .... Take as many mocks as you can ( My suggestion would be to take the mock in K & B CD as the final one as it resembles the real exam most among all mocks )
Im sure with each mock exam you take you will learn some thing new !!!
And finally keep your cool in the exam. That is where it really matters..
Prepare well and all the best
Cheers,<br />Jagadesh.<br /> <br />--------------------------------<br />SCJP 1.4 , SCBCD 1.3 , SCWCD 1.4<br />--------------------------------