I'll say it's better to remove the current records with both HD & FL enabled, and not allowing future submission when both HD & FL are turned on
However, it's unnecessary to clear HD only records imo
From what I know, DS players cheat by enabling those 2 mods only, or sometimes also with HR ( HD+FL(+HR) )
So removing records that have HD & FL turned on is enough to clear all DS records
After removing & banning the submission of HDFL, those DS players have to use sth like HRHD or FL only to continue cheating, which both have a same score multiplier when compared with DT
( And yes, HRHD is harder to get a high acc because of HR's effects ( OD+2 ) )
So their score could be lower than those DT or DTHR, which are not done by DS cheaters
And I think HD-only records do not have to be cleared as those DS cheaters won't use HD-only to cheat ( x 1.06 is too few )
However, it's unnecessary to clear HD only records imo
From what I know, DS players cheat by enabling those 2 mods only, or sometimes also with HR ( HD+FL(+HR) )
So removing records that have HD & FL turned on is enough to clear all DS records
After removing & banning the submission of HDFL, those DS players have to use sth like HRHD or FL only to continue cheating, which both have a same score multiplier when compared with DT
( And yes, HRHD is harder to get a high acc because of HR's effects ( OD+2 ) )
So their score could be lower than those DT or DTHR, which are not done by DS cheaters
And I think HD-only records do not have to be cleared as those DS cheaters won't use HD-only to cheat ( x 1.06 is too few )