4 of our units have the deerskin units on them, the newest one has a direction bar on the back of it, the other three have the amber whirly light on the top that is basicly useless. The oldest units has the shorline unit on it with a light bar on the top. I am pretty sure they all flash amber.
I always use my hazard. Sometimes at night I use the hazards, the whirly light and the flood lights. People in this town drive crazy...I want to make sure I am seen.
I love the deerskin cages, but yes the trucks are hard to back and park at times. I have had a couple light pole "jump" behind my truck, luckly no damage was done.
Some days your the cat, some days your the litter box.