The problem with this option is if the process last longer and you receive RQ they may ask you for all addresses where u lived before or they may ask you in interview where u live. How you gonna prove you live in the same address they have on file? How about your DL and Health cards ? did you update address on them ? if so remember you will show them on interview day and they will find out you moved and didn't bother to change your address with CIC.