I passed the test last week with 83%. I was given indeed 82 questions. I had calculated that if I am to be able to answer all the 82 questions I should roughly answer 12 questions every half an hour. I was very concious about the time - when I finished question 82 I had only 15 spare minutes which I used to review - I had missed answering one question and I had to correct another. In general I didn't find the exam much easier than the Wizlab simulator, apart from the Collections/Generics. On the exam I thought that the Collections/Generics questions were rather basic. Not surprisingly then I had 100% on Collections/Generics. Oddly I have only 63% on Flow control - this is an area that I have never experienced any problems with.
If you are interested I only did one of the 4 full mock exams in Whizlabs and I got 80%.
A word of warning about Whizlabs. I had a problem with it. During my preparation, after each major subject i had completed all the questions related to that subject. I saved my reports in order to be able to go back and re-try all incorrectly answered questions. But not to be, because the Whizlabs simulator crashed and couldn't do it. The file MainReport.wlb became over 100M and this seem to be the cause of the problem. Whizlabs have only a support e-mail, no contact phone numbers. They replied quickly to my e-mail with the standard reply to re-install the software. Despite that I send them the above file, that caused the problem I had no further replies from them.
For my preparation I used a book called "Complete Java 2 Certification" by Phillip Heller and Simon Roberts. It covers both the SCJP and SCJD. I found the book uncomplete and the tests very easy. So I would not recommend it. But when I realized that there is a much better book on the market I had only read this one twice and it was too late to switch to another one. I used this notes: http://java.boot.by/scjp-tiger/ the Java Specs and the SCJP forum. It has been a great help to me - specially in learning areas that weren't covered in depth in my book. Thank you to everybody that contributes to the forum and to all the people that answered my posts.
SCJP 5.0, SCWCD, SCBCD, Oracle Certified Master Enterprise Architect