Just a quick note that I experienced "enhanced security" at YYC today. You end up near A gates which is OK for Local Q400 flights but remote from MLL.
Also took close to 20 minutes in Nexus lane to clear. and I had no one in front of me but several on other side of scanner waiting for bags to appear. Oversized bags getting hung up in chamber and other teething issues. Long grappling hook seems to be part of the enhancement.