i bought an LED light stick for pulling traffic on the slab. I did have a foot actuated mic for pursuits so you could hold the wheel with two hands and drive. and i did have bars on the windows.
all the new units have a built in direction arrow i think
The arrow is a good touch. The last marked unit I had back in 08 had the LED bar with the directional pattern built in.
I only use their lights.
JR1572