A couple of basic AccurateRip questions Options

[BFG]

I'll browse the Wiki today in an attempt to answer these questions, but I didn't think it would hurt to post them here in the meantime.

After a false start (where I forgot to deselect "delete leading and trailing silent blocks"), I am now merrily archiving my CD collection using EAC and FLAC. I've come up with a few questions during the project:

1. Are pregap tracks aka "Track Zeroes" stored in the AccurateRip DB? If so, are they stored as part of Track 1?
2. I'm trying to decide how to handle tracks which have hidden second songs (typically at the end of the album). It appears AccurateRip assumes both songs will be ripped as a single track. But for archiving purposes, is there any reason not to split these tracks apart, provided I don't delete any of the intermediate silence?
3. I'm used to seeing albums that aren't present in the AccurateRip DB or that are "different pressings/versions" of an album. But I had one strange situation come up. I don't remember the album, but it had 11 tracks. Tracks 1-8 and 10-11 matched the DB. But track 9 - which EAC reported at 100.0% quality (i.e. no sectors were reread), didn't match the DB. What could cause this?
4. My CD reader has a +6 offset and no ability to overread either direction. I assume this means I'm losing 6 samples - or 0.136 milliseconds - on one end of the track. Is that correct?

Thanks in advance.

This post has been edited by Jan S.: Nov 26 2012, 20:16

Reason for edit: fixed title