Adam Block demonstrated a use of DBE where he selected the AXIAL option for placing sample points. It does not work on all images but it sure can make a difference on targets where you need sample points around the AXIS - which is where AXIAL gets its name - I think!
https://adamblockstudios.com/ Adam Block Studios - best astrophotography training on the planet!
00:00 Introduction
03:20 Blur Exterminator by Russell Croman
04:20 DBE - using AXIAL placement of sample points