RE: Speaking of physics - STS thought
It is obviously not possible to dampen ALL the motion of the string with just 1 STS. However thinking in terms of other vibration dampening accessories, it does not do thewhole job.The designers probably knew this.I think their intention was to improve , not totally eliminate string oscillation.
That's a good thought abouta top STS.
I would suggest you RUN to the patent office w/ your design.