Chuck

I want to agree with you, forging is the start for a spring, so I was taught. But look at the inside of that V shaped piece. That surface looks mightily like the one my EDM collaborator gets. Forged surfaces tend to be a lot rougher than that.

Now it could be that the EDM process is used to clean up the forging, which would be a clever use of the technology. But if the end result is a durable spring, the how becomes a bit secondary.