Here's a pic when I first started using it with my butterfly bars. The system is quite heavily built but relies on a plastic quick connect attachment similar to most modern traditional HB bags. The problem is that these systems are meant more for off road and the constant jarring causes the plastic connector to rotate around the bars. To solve that issue Blackburn added a piece of cable that loops over the stem as an extra safety feature. You can just see it crossing the crown of the stem. It's a poor design IMO. Even though it is so heavily built it seems they worried the fastex buckles might fail so they also added a red retaining strap that could synch the whole drybag to the bars.
Here I have mounted the attachment system to a second stem because the main one was too crowded.
