this is why i switched to 5th liners for higher wind, anything over 15 and im on 5 lines...
the good thing about 5 lines is that if you do get in trouble and cant find the QR, all you need to do is grab your leash and pull a good 1-2ft... that will pull the nose of the kite just enough to dump most of the power, unless its a 16m + kite, that would require more then 2ft.... but on my 12m, if i pull one foot of the 5th, the kite starts to fall out of the air, it obviously wouldnt stop a looping kite, but the pull would be reduced drastically