Okay, I have 20,919 mp3s on the player (I always forget how many I have because the player doesn't always removed duplicates when repeating the root playlist like it used to) with 6.26GB free of 130GB. Anyway... the process:

1. Installed latest Hijack.

2. Connected via emplode and added one 4.54mb file.

3. Pre "FidSift" Sync
Start: 10:11
End: 10:28
Elapsed: 0:17 (I was surprised it was this quick!)

4. Installed and ran FidSift.
Started sifting drive0: 10:52
Started sifting drive1: 11:11
Ended: 11:34
Elapsed: 0:42
Drive0 went up to about _0004d and Drive1 went to _0005b. As Mark pointed out, this shouldn't take this long after the initial run.

5. Connected via emplode, replaced same 4.54MB file.

6. Post "FidSift" Sync
Start: 11:35
End: 11:43
Elaspsed: 0:08

That's over a 100% speed increase!