Ahh!!! I just tried and my fingernail FLEW OFFWhen I do it, I rest my middle finger on the blade right over “USA” and then with my fingernail resting on the thumb stud I push the blade out. View attachment 1334853
As you can see, its not straight up or straight out, but at an angle. The main thing though is not to push down too hard on the blade, which I think goes for regular opening with the thumb stud also.
Hope it works for you!
I Just kinda rested it back on and ductaped it. Hopefully it bonds