485 check cashed at TSC

I-485 sent on 9/20 via USPS express mail overnight.
USCIS received it on 09/21
check cashed on 09/26


I see the receipt date on back of my check is 09/22. So it seems only one day delay for USCIS to process after they receive the package. I just want to ley you guys know if you are sending 485 to TCS, they are processing it very fast. It seems if you can send out your package by tomorrow, you will be fine!!