Keep as accurate notes as possible! use a torque wrench to see how much force is required to flex it. not just how well it cut, but how many cuts it took to quit shaving, then how many cuts to quit agressively cutting, on a bathroom scale to measure force for each cut. how many edge flexes and if the edge bent over or chipped out and on what number of fledge flexes it happened. test the tip by concrete floor test, hammering it into mild steel. anything and every test you can think of, but keep those notes in a place where you wont lose them.
As the others said, believe that it will pass! Not just one 90 degree bend, but several! dont forget to use wood blocks between the blade and the jaws of the vise, and your safety glasses!