I dunno if this has been posted before, but let me start out by saying I love the smartloop, and have it on both bars for my 06 shockwave and my new 13.5m cult.
the safety concern is pretty important. the swivel pully that holds your depower lines and front lines is attached by a screw that DOES come loose. I was gearing up 2 days ago.. and was about to launch and saw this danger about to let my kite fly about without any front lines... luckely I saw it in time landed the kite and tightened it up. today I put some locktite on the end and made sure it was in there snugly. I recommend you do the same, and check your bar for a loose screw.
here is a pic of the pully swivel thing