I will be using the M27 to jam from the front and the ZR 4 from the rear. There is no place to mount Blinders on the rear. I will have to keep the ZR4s in shift mode since as far as I know, there is not a way to program the front for receive only and have the rear set for shifting. I am planning to put the front ZR4 heads in the engine bay where they will be of no use but should also not interfere with the M27. Also, I am considering putting a laser shield cover on my rear plate since the single ZR4 head will be somewhat weak. Is this plan my best alternative?