Witness call, help needed on kitecleat accessory REX ! :)

[kitesurfvoilier]

Hi Kiteforum members,

For those who don't know about my design project of kiteboarding accessories, all is here: http://kitesurfvoilier.fr/en
As I almost arrive at the end of some series (1500+ units) of my first comfort and safety pocket accessory: Kitecleat, I can now think about an eventual next version of it.
So the aim of this call is to know is any of you have experience or be witness of a problem using it that occurred any damage on a line. Prior to make it built, I test that a line involuntary placed in the blade compartment was not damage by the open/close movement of the Kitecleat (please take a look at: https://youtu.be/VO9d8rZbMik )but as Kitesurfing is an "all days adventure" sport, it would be presumptuous to be sure of having imagine all that could happen.
So if you have had of witness any bad experience, please tell me how it happen with max details so that I could think about changing something in the product or the way I advice to use it.
With hope that not so many riders are totally refractory about arranging their lines in an also cutting tool accessory (are you?)
Many thanks,
Sébastien