Its hard to say!
The pre-naplex is ok, as it is just an official practice test with questions from old exams. I was required to take it during my P4 year before I graduated and didn't take it or use it again during my studies. Its good in that it shows you how the exam is structured, but it does not show which is the correct answer after.
I did use the rx prep test bank, but only when using the rxprep text book. After I finished studying a section I would move onto another section and then take the quiz for the first section I studied with. Interesting enough there are some questions and answers that are not found in the book. But the answers that are given have summaries of why the answer is given over the other ones. However the questions and answers are not structured the same way as the naplex is.
Hope this helps.
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