Welding Rear Springs

[8EL]

The rear spring on my 31 coupe has been worn against the axle housing leaving a divot on the outside of the spring eye. This could be easily welded with a low hydrogen rod, but what effect might it have on the metallurgy of the spring?

The spring is otherwise serviceable and given the cost of it, I intend to reuse. I could leave it as is, but would like to reapply the material lost. Has anyone attempted this type of repair? Photos attached......