If u really want answers to all u're questions go to this link,,, takes 20 minutes to decipher it all but even tells u what different guns are gonna read...

http://www.guysoflidar.com/march-200...mmer-test.html

THE key is once your jammer/diffuser alerts you to a signal then slow down to the speed limit AND then turn off your diffuser so the trooper can get a reading....Then he has less suspicion that he is being fooled