i did the CLB test around 8 days ago, I'll share some tips here based on my own experience, which might be useful for anyone who'll be taking the exam for the first time:
my score was 8 on all parts L/S/R/W...the listening and speaking part were about 20 minutes in total, while the reading and writing tests were 30 minutes each.
CLB is easier than ielts, it takes a lot of preparation to achieve a very high score in IELTS, but the clb test just requires relaxation, avoiding being nervous and high concentration - specially in the listening part - where a brief conversation will be played and you'll be asked to recall the key details.
The remaining parts are quite easy, but its important to keep track of time, in the reading section - there's not enough time to read the whole texts ... but scanning/skimming is enough to answer the questions...the writing part of the test is really basic nothing to worry about here as well. I've observed that the examiners are a bit flexible with time also...a few candidates requested 2 or 5 minutes more to complete their work and were given the time they needed without any issues.
surprisingly, although it says on the web that CLB scores range from 1 to 12, but the examiner informed me that 8 is the highest possible score for CLB
