I've been such a dedicated B6 flyer I haven't had the joy of experiencing these "group" systems on other airlines. How do these systems accommodate groups on the same reservation? I.e., if you're booked together in middle and aisle, will both passengers board in the same group (as in theory they could board with the "aisle" group and not block anyone else in the row)?

I've always felt like the biggest delays boarding B6 are inexperienced travelers fighting with E190 bins...