Hi guys,
A simple question... Why is everyone so fixated on relaunching a kite after you have pinged the Quick release?
I have had to activate my QR on the chicken loop about half a dozen times in 11 years. I have never been concerned with relaunch after I have done so.
In emergency situations which lead to the need to activate the full flagging quick release, you are usually in a serious or even life threatening situation which on my part, has always ended in the obvious decision to self rescue back to the beach, not to get the kite back up in the air. That was usually the opposite of what I wanted.
The Ozone system can be relaunched after quick released, however, the chance of tangled lines is possible. It's purpose is to safely kill off the power under ANY condition. It's ability to be relaunched is not really considered at design stage although the ball on the front line does stop any additional unnecessary tangling.
The safest system is 5th line followed very closely, if not equal to a front line flagging 4 line.
Virtual 5ths work well provided the kite doesn't roll through it's bridle which can leave the rear lines bridle tangled around the wingtips, this prevents the virtual 5th from working. This doesn't happen all the time, but I have witnessed it happen several times in a season, so it's very possible.
There is no perfect system, just some safer than others, and lets face it, safety and dependability should be the primary if not only consideration when considering safety flagging systems.
Some manufacturers do not build in full flagging virtual 5th's, they just depower and dump most of the power. I don't think these are safe enough personally.
Again, if the kite has bridles and is not made to flag to a virtual 5th, don't rig one from a single front line flag system. Manufacturers don't just chuck kites out there with safety systems that "should be right", they build in the safest system to function as best as it can, by modifying a system to virtual 5th, you are ignoring the limitations of the bridle system. Do so at your own peril. Never modify someone elses system for them.

DM