Has anyone ever attempted to modify a standard stainless steel nib into a flex nib?

I have been tossing around the idea of taking a nib, something like a Goulet's #6, and strategically thinning it to make it flex. I was thinking of using a conical stone to remove steel from the side of the nib up to the slit but not into the slit. This would leave a strip of steel next to the slit untouched so that the slit's integrity is unharmed. The steel removal would be a horizontal line across the nib just below the breathing hole. One would have to be careful to not heat the nib to the point of annealing it and remove the spring from the steel. Clamping it to a piece of steel to act as a heat sink should handle the heat.

Think it would work or am I missing something fundamental?
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