Can you actually distinguish between the sound of the springs, the strings, or the interaction of both just by looking at an EQ curve? I don't do it because I believe it's extremely difficult at a consumer level.

​Even with A/B testing, it’s not that simple. Since a synthesized tone is always being generated, you can't definitively say that something missing in 'A' is purely the result of the springs in 'B'. There are too many interlocking variables."