Hmmm..looking at the scores,I would say that u show a definite progress as u went along with the mock exams...but u still need a little more practice if u really want to crack the exam.
Here are some of the things I did to become a SCJP.I hope this helps..
Take your time Dont be in any hurry to answer the question.You are not there to prove anything to anybody.I am not sure of the format of the present exam,with all the changes Sun is introducing in it,but if u know ur Java,u will have ample time.
Read each question carefully The questions may appear simple,and in most cases,are simple.But it does help to review each question twice just to make sure u have understood the question in it's proper context.
Review the answers Even if u are sure u have answered correctly,look at the question and answer twice.
The strategy i applied was....I finished all the questions in about 1 hr 10 min (when i gave the exam,it was 2 hrs,59 questions and 71% passing percentage).Then i started from the 1st question again and applied the strategies outlined above.
I caught at least 6 questions i had answered wrong. Don't panic Keeping a cool head and having confidence in yourself will take u miles ahead.
Give as many mocks as possible I include this just as a wrap-up,no need to tell u this.You already have.
The mock exams give u an indication of ur weak areas.Concentrate on those and strengthen the overall knowledge needed for
SCJP.
I have not included the Java tips which can be useful as a short revision.For those u may follow
www.javaranch.com/ubb/Forum24/HTML/001524.html I hope my experience helps u.Best of luck for ur exam.