Like you, I've cycled through a few 950's. While there were hiss differences, they sure were subtle with mine. My current 950, with the red dot, does not hiss much differently than the 950's I had before. That's my experience, for what it's worth.

Soundhound measured the noise in my red dot, and says it is much noiser (hissier) than his red dot 950.

There seem to be variations, in the red dots. Mine sounds great, despite the hiss.

[This message has been edited by Will (edited October 07, 2002).]