[[!comment format=mdwn username="Xyem" ip="81.111.193.130" subject="comment 2" date="2014-08-01T09:05:45Z" content=""" Could be tested out with an additional flag `--with-size-bloom` on import? It would then build a bloom (and use a cached one with --fast) and do the usual import. So I could do this: # Bloom is created and the import is done using it git annex import --clean-duplicates --with-size-bloom $TARGET # Previously created bloom is used git annex import --clean-duplicates --with-size-bloom --fast $TARGET2 git annex import --clean-duplicates --with-size-bloom --fast $TARGET3 I can implement this behaviour in Perl with Bloom::Filter and let you know how it performs if that would be useful to you..? """]]