Thanks guys for all these ideas and thoughts.
First I have to tell that my tether is infact a kite safety leash.
So at the end that is connected to my harness (with a oldfashioned clip shackle) there is this kite release mechanism (shifting a hose).
But that mechanism was not of much help in my unfortunate case, because I was still trapped to the shroud.
Indeed Jake, I have thought also using a snap-shackle because that would eliminate the unvoluntary clipping.
With regard to ankle connection of the tether, I would strongly not advise that. Because of the risk to be dragged in a way that is dangerous.
I have chosen on purpose for the connection at my chest, because that seems to me the least dangerous.
But I'm open for any other thoughts on this.
P.S. Yes I have to think on a mechanism to release the mainsheet when falling overboard.
Last edited by northsea junkie; 09/06/16 10:21 AM.