6. Your goal is to have every hour for each bay billed out during the hours you are open for business. Dead jobs waiting for parts, etc for more than a couple of hours or more should be moved outside if possible and you can measure this one. The bay is for selling hours and parts and not for storage. I ran day shift and an afternoon shift and had a 15 minute overlap between the 2 shifts so the day tech can explain things to the afternnon tech who was taking over his job. I found anyone working past 11:00 pm became none efficient especially when outside parts required at these times were hard to get.
7. A lot of my customers were repetitious "fleet" customers so I also had 5 mobile service cube vans fully equipped working right in the customer's yards working two shifts also. I just added another 10 bays to my shop without moving to a bigger building. The service trucks also sent a lot of bigger jobs to the shop...great sales tool.
I hope the above information was some help for you and I am very happy to hear you are very busy during these tough times George.