The updated Valentine 1 filters the BSM signal out. It works pretty well. I have one. The new Valentine detector should be even better.
I don't use it much - here's why: avoiding a ticket at high speed (I admit to nothing here, this is hypothetical, of course) is more than just a detector. My V1 will alert me of an instant on being used up ahead, but that detector alone isn't nearly enough, not when the cops have LIDAR, or when there is no other traffic on which the cop is using the Radar.
Avoiding being caught is more of a "first sight, win the fight" thing. If the cop sees the speeder first, the cop wins. If the speeder is on full alert, aware of potential hiding places, observing traffic (in particular, brake lights) well ahead, paying attention to the detector, and everything else needed to be first to spot the LEO and change speed before the LEO can get a valid reading, then the speeder will likely be OK.
But that kind of driving is exhausting. Fighter pilot with a fast car vs. cop. Knowing the threat, hiding places, etc. and paying full attention. Recently, during a wee hours of the morning return from Dulles Airport, after picking up my wife, I made a 4 1/2 hour trip in 2 hours, 45 minutes. The effortless power, and strong brakes, of the S600 were a great help, as was my V1. I've done it. Many times. Successfully.
But it's really hard work. And there is some risk that I will get caught.
I choose to spend most of my highway miles at 7-8 MPH over, cruise control engaged, SiriusXM playing, and a cup of coffee in hand. WAY lower stress than trying to shave off any significant time by going fast. The work level isn't worth the time savings. Often, traffic precludes any meaningful increase in cruising speed, anyway.
So, my V1 sits in a case. It's there if I want it, but rarely used any more.