I'm feeding from blogger.
1. I create a blog entry - terrible spelling long title
I later edit it
but my feed - even months later has the original post not the corrected post.
2. I have a long blog in blogger - lots of good stuff from the years I want into my web site
But your system only seems to pick up on latest posts - it does not go back beyond a certain date - even if it only finds 3 or 4 relevant posts to put into the feed.
This is really annoying!