I'd suggest getting at least a medium or even a coarse grit diamond hone for reprofiling D2 -- even fine grit diamond hones are really slow when you have a fair amount of D2 to remove.
I start with Extra Course, it saves a lot of time
Also the trick with the Queen D2 is to keep it sharp with an Extra Fine
Don't let it dull where you will have to go back to Course...
It is much easier to get the CV to very sharp, but it drops off quite quickly
It is much harder to get D2 to sharp, but it stays there