Hello,
I believe this is still valid, the default checks were designed based on the following information.
Deluxe Check Stock we use for Business Central in case someone asks:
https://www.deluxe.com/
The following are the Deluxe Products for the Check Report ID’s in Business Central:
FLB500 - 10401 Stub/Stub/Check
DLT120 – 10412 Check/Stub/Stub
DLA108 - 10413 Three Checks Per Page
DLM121 – 10411 Stub/Check/Stub
I would double-check to see if they appear to line up though.