Bennis123 said..

PSA: Do NOT buy Prolimit Drift wingharness. First session and the basic latch is knocked open on accident. Since the hook isn't secured to the belt in any way it slides off and is now lost.
Can't believe a brand like Prolimit releases such a rushed design with obvious flaws.

This happened to me also, initially retailer said he would send a new hook, but, he never did. I 3d printed a hook from thingyverse. It broke, so traced shape onto plastic bread board and cut it out. The belt slot is narrowed so it won't fall off.
I am more careful about closing the belt clip and it has never opened un intentionally again.
All prolimit needed to do to prevent this, was put a rubber band around the belt to stop hook sliding off.

I really like my prolimit winging harness. Just need to make sure to close the webbing buckle latch properly so that it doesn't catch on the wing leash. It's also worth putting the webbing strap through the buckle then folding the strap and adding a stitch, this way you can't loose the hook.
The folding hook is a great idea.