When I used to do assassination missions, I used to find the bad guy in supercruise and follow him until he low-waked, then target his low wake, approach it like any POI until I got the "safe disengage" message to drop-out, and there he would be. I was playing in open today and targeting many low-wakes, but not "safe disengage". It said I needed a wake scanner, but I never had one when I did it previously. Has something changed or am I doing something wrong? I know I'm going to kick myself on this one!