with due respect if a line is caught in the hook, your system does not address this issue.I think that there are quite a few good working Quick Release Solutions and Safety Systems on the market right now. The problem is that nowadays you need systems that work well for unhooked riders and hooked-in riders.
At Spleene we took a good look at the various aspects of safety systems and came up with a double safety system.
When our first (primary) Quick Release is actiated it pulls on both front-lines of the kite until it is totally depowered and if that isn't enough you have a Total Release Option which completely disconnect the rider from the kite and also disconnects the Handlepass leash at the same time. It is possible to use this Total Release Option straight away without having to use the first release.
To me that is as save as it gets but I am sure there is always room for improvement.
Our first Quick Release uses a somewhat similar release solution to the well proven Cabrinha system which has pretty low release forces.
However, we made the red plastic release part a bit bigger and moulded it into a mushroom shape which I believe is easier to grab and protect the hand a bit more.
On top of this we enabled the top of the chickenloop to spin and unwind the flying lines when the bar is pulled towards the rider. I believe that this is an excellent system and works much better than most swivel type devices above the bar which often don't unspin the lines properly.
Here is a link to the manual of the Spleene "IQ"-Bar and release system which shows everything in detail.
http://www.spleene.com/pdf_info/Q-Kite_ ... igging.pdf
having spent two season teaching on busy beaches the line wrapped around in bar is not that unusual as scenario