I have the same question as the original topic. I attended some relevant talks organised by an NGO which is designated by Canada. There, I heard that some people might 1) ask others to bring the PR card to them back in their original country, so that they can bring the card to enter Canada or 2) use a courier to mail the PR card to their country. Understandably, the NGO cannot give such advice, so the host there said there might be a risk that your PR card in the envelope might be found out by Canada's customs thru some technology (or simply opening it). By that practice, it is also meant that short landing was and probably still is a usual practice among some new immigrants who enter Canada for a few days, leave Canada to do something - like handling property - in their original country, even for a few years, before they actually settle in Canada as a PR. The issue is also coupled by the possibility that the PR card arrives really late to the courier/your friends who bring the card. Any thought?