Wow I just bought the M-25 about 3 months ago. I have ran the blinder 2 times against the prolaser 3 it looked as if I JTG. The look on the Leo face was great and the jammer was still going off as I pasted him. That was great I was going to tell everyone that this is a great jammer. BUT There just needs to be more testing. Mine is on a Black 2004 grand prix? What do u all think about the grand prix vs laser with a jammer? Now twice I ran it against the ultra light. I may of jammed for 6-8 sec than I think he got a reading. I was about 1000 feet out when I first got hit both times!!