Yes, I'm big on efficient training and getting the most out of every string of fire....
Make sure and do a good scan after (always). If you are by yourself in an area that permits it, scan the rear 180 deg. by physically turning around your whole body and looking. I got corrected at Gunsight on the whole keeping the gun forward while performing an owl maneuver looking to the rear. That is a square range training scar, in real life why would you face one way and try to look behind you?
So now, in a square range environment, I scan the front 180 and that's it to avoid building a bad habit. At home dry fire and shooting in the woods, I practice the full 360 scan.