I was looking through Roy' site and was looking at these two systems. Does anyone have experience with the Rx75? Everybody seems to be talking about the STI-R, with its discounted price, but I havent heard anything about the RX75. It seems like the STI-R, plus laser Jammers, for a good price. I also saw the SR7 by Escort. Is this just a concealed radar detector? It has "laser detectors", are these jammers? What is better about the STI-R than the STI driver? Also, is the RX75~900$ comparable to the 9500ci? Would it be a better than say a 200-300$ detector such as the Rx65 or the v995 + the blinder m37 ~500$?