I recently just deleted my find by content index on my hard drive and reindexed the drive. I have a 6 gig drive with 3.68 gigs remaining. The index content takes up 267 Megs of that hard drive. That means that 2.06 gigs of the Hard Drive is full, and about an eighth of the space is used for the index.
On my superdisk which has about 60 megs of stuff on it, the index is only 300k.
Any ideas if this is how it should be and/or how to fix it?