It would be good to know what the real process is for the shift from CPC-V to CPC-M.
A valid reason for concern, is if an application is lost (or a portion of the application) during the transfer. I imagine shoving a mound of papers into a truck and shipping it to Mississauga has potential risks, but more than likely the files are being transferred electronically. Maybe even the supporting documents (including pictures, etc.) are digitized by someone at CPC-V, thus creating electronic files for those as well.
Obviously, the validated forms with bar codes, once scanned, are automatically entered into their system, which means that their transfer is instantaneous.
Time will tell.