Are you applying INland or OUTland?
Because if you applied Inland, the MIDI is sending a copy to CIC, so you do not need to send anything (I did not have to...). If it is Outland, I couldn't answer you.
But after you received the CSQ, the only to do is waiting to get anything from CIC... unless they're requesting any documents or whatever.
But in the case of where you applied Outland, I couldn't answer... but INLAND, you do not have to send them a copy of your CSQ.
We're also applicant from QC. Except that the procedures are pretty much done for us.
Good luck !