Sorry for the late reply, was a busy day and I couldn't do what I wanted in order to answer your question from my phone. Had to wait until I was home and the family was in bed so I could get to my office.
I calculated the current average of BS to WS for all trucks built since the start of production at 8.1 days. Current range as of today is from 0 days (BS in the morning and WS the same evening) to 24 days max.
This does not take into account the over 6000 trucks that have build sheets and still don't have WS which if I calculate those as all getting WS tomorrow, they range from 8 to 25. Your build sheet didn't hit until Monday 9/27 which means you are at 8 days today so the very low end of that of the 6000+ trucks that are still waiting on a window sticker. The first three trucks that came down the line on 9/10 still don't have window stickers either. At this point even averages are somewhat meaningless until the backlog of trucks are released and production can get into a more uniform cycle.
TLDR: Be happy you have one truck that was built and released on the same day and a second that is at the very lowest end of those waiting. There are still 336 2021 trucks that are waiting on Window Stickers, including 5 members that have been waiting for 21 to 64 days currently.