I just purchased a Escort 8500 X50 on e-bay (refurbished). I have two older units both Radio Shacks one is a 22-1682 and the other is a 22-1686. Both state that they have VG-2 Guard which foils detector finding devices. I have NOT seen much chatter about these detectors on the net. Were they or are they any good or are they too old to be useful. I just installed the 8500 X50 yesterday so can't comment much about it just yet.
I wonder if anyone has any experience with the Radio Shack units? Apparently they did not meet FCC certification and I got them at Radio Shack on the cheap about 5 years ago.