I am debating on whether or not to use the rear shifter in the ZR3 system for the rear or for the front. In the new england area more specifically around NJ, how do cops target cars? From the front, the rear, overpasses? I will be driving up and down from NJ to MA so I would like to know what the optimal placement for the rear ****er would be. I have read through the section and have seen what guns are used for my trip up and down and it seems like MA may get me with the Atlanta. I may also buy a second set of jammers but would like to get this first set decided on. Of course I will wait for the GOL test to be published. Thanks guys.