Prat6 and Sushsmart.. I agree that the difference is just 3 points. But my current CSR is 464, which is borderline with the current trend and even 1 point in this range matters a lot, as we have seen and hence the dilemma.
There are many threads dedicated to IELTS, you can find it here http://www.canadavisa.com/canada-immigration-discussion-board/ielts-international-english-language-testing-system-b53.0/.
Here is a tip. For at least 4 weeks before your test ensure that when you read, write or speak you do so in English and not your first language. This will assist you to better prepare yourself mentally as your brain will be used to undertaking thought processes to respond in English when you look at the stimulus material in the language test.
Anyone with CLB9 in all modules of Ielts do not need to re-appear or get it reviewed again. It will not make a big difference anyways. Ppl with 460 and above have a great chance of receiving ITA sooner or later this year. Instead of giving ielts it looks a better idea to apply for pnp in any province that's open. Regards good luck everyone.