Above results are on par with my own testing I did earlier tonight on the flat side of a blade sanded to 3000 grit with wet/dry. I was trying to get the fine scratches left after hitting it on a 6in buffing wheel with medium grade compound(SCR I think)….Searching for that elusive mirror polished blade.
I used a dremmel with the tiny buffing wheels for my testing with flitz and the 5u diamond paste(tan). The flitz took out some of the finer scratches, broke down quickly, but left a nice overall shine. The 5u paste seemed to be working but heavier scratches remained, same as with the Flitz, only difference seemed to be no higher gloss shine after I cleaned the blade with rubbing alcohol.
Also agreeing with ApexGS regarding the wet Flitz. Messy but works better, suspect something chemically is going on with it by the smell. I have applied it to a strop for buffing the bevel but once dry…the magic is gone. lol
I hope to photograph whats going on at the blade with different polishes to really determine progression for scratch removal once I get some magnification.