Thanks Faxie, in the video two things appear.
Video #2, the first one doesnt show as much.
The center hole is quite big, two 4 mm lines and a safety line can fit.
And it seems like you can use one 4 mm line only, and tie a knot inside (end knot/stopper knot), which will be the desired use of course, instead of two lines which has disadvantages, except for the option to have a stopper maybe.
Dont understand fully, but it this CL+QR from kite attitude the very same as the GONG?
Or are these just parts like pumps, same parts just printed different names on these?
Do any of you have a 4 mm line tied into this swivel?
Hard to see for sure how much space for a knot, inside.
If you make the knot outside like a loop, the knot would probably fill the hole and prevent a safety line sliding freely?
Was that also your doubt Herman?
Seems I have to buy one only first, and test myself, if noone else have done it yet.
Another advantage, it seems you can just mount a tighter elastic so you dont risk opening the QR by accident too easy, which would be a nightmare when you foil (but an advantage on other boards when in trouble).