In my understanding regarding the 40months for the step one is 40 months is the time for you to comply all the req. Needed or lacking req.of an applicant, and it maybe vary if you are on the priority list like Nurses if you pass the complete requirements maybe you dont need to wait for 40 months for you to be on the step2 which is 1-3 monts and step 3 is 1-9 months. The longer the better coz interview is not easy and speaking in French language is difficult, if your assessment score is 52 you need to get a 3 points during interview.
Dont rush things guys instead Pray for the best..
And for Nurses if you cant wait you can still apply in Middle East countries wherein Nurses are indemand while waiting for your applicqtion..
Merci