That is ridiculously inefficient! I'll help backstock if I'm caught up and there's less than 10 orders to be batched.
We are trying different things right now because we're so badly understaffed. Generally it is one person on SFS from 5:30am til 12:30pm and another from 12-3pm. However, right now that second TM is also the backroom closer and the only person in the backroom after 12:30, so they also have to pull the ones and pull items for guests. The morning TM will get everything picked and some of it packed. If it feels like there's a lot in there and it might be too much for the 2nd TM to handle, they'll ask another TM to jump in and help pack. The TLs and LODs are all on board with doing whatever it takes to get it done on time.
SFS does SPUs during the day, backroom does it at night.
Yes, usually around 100 orders. Our daily cap (in units) is usually upper 100s to mid 200s. I think today it was 240.
Everything is usually finished by 2pm.