¶ Old Dots(OD) modifier
In the Beat Saber game update 1.20 hitbox of the dot nots was changed from the rectangular to a square box.
Old dot:
New dot:
This makes them easier to hit but harder to acc, because accuracy is calculated at the moment of the hitbox intersection and the further it from the block's center - the bigger the variability.
You can reverted the old logic with PulseLane's mod:
https://github.com/PulseLane/FuckNewDots
BeatLeader marks all scores posted from game versions prior to 1.20 or with this mod installed.
OD modifier does not affect the final score and exists just as marking.