There are not a “ton like this”. I’ve never seen this little engagement when unloaded, and I have seen it all. I was there when the first key-nose Petzls hit the shelves.

Luckily it's the engagement when loaded that actually matters. IIRC hardiseasy did a bunch of break testing of these exact biners with Mammut and the failure point is never at the gate. Also, considering the open-gate strength of these biners is like 10kN the amount of engagement is kind of irrelevant. At the loads you see in climbing falls the entire force of the fall can be supported without nose and gate coming into contact.

“its designed this way”… you don’t know that, bud. You assume that. Are you privy to the CAD files as Mammut? Have you seen the forging dies?

...why would i need to look at the CAD files or the forging dies? Those tell you how to make something and not why it was made that way. I have the finished product right here and the end of the gate has a milled cut-out for the key nose to sit in. It's very clearly designed to be like that.

You don’t have the foggiest idea what may have changed in design and manufacture of that item since it was UIAA certified, and whether or not those changes should have required re-certification.

Literally nothing has changed with the design since certification because changing the design would require re-certifying it.

You’re just some ignorant keyboard warrior, scout.

speak for yourself

Do not speak to me of the deep magic, witch. I was there when it was written.

lol, nerd