Yes indeed we are out here. I for my part is quite happy with the K3 noise blanker. You are not mentioning the nature of your noise. Mine is the scratchy 120Hz noise emitted by power lines. The K3 noise blanker is quite effective in removing it. I use a combination of the hardware and the DSP noise blanker. I do not have any TT transceivers nor the Pro III so can't help you with a comparison there. The noise blanker in the K3 is one of the reasons I spent the money to upgrade from my IC-718 which otherwise performed to my satisfaction. I had confidence in the K3's noise blanker as there are before/after audio clips out there. I can send you one if you are interested. I think I still have one somewhere. Right now it's raining so the noise is absent.
BTW I am working with the power company and have had some success in getting problems fixed, but since last fall there is a stubborn source that so far has defied detection. I think I know where the source is (down to three poles), but unfortunately the National Grid tech doesn't agree with me. This is constant struggle anyway since new problems are constantly popping up so I decided even if I were to ultimately succeed in getting this particular problem fixed, I need a working secondary defense and the K3 is just that.
Knut - AB2TC