I usually try for between 4000 and 5500 words unless the story demands a much shorter part. I think a very dramatic part can be shorter and a slower part can be longer.
As a reader, I find really short parts dissatisfying - but that can be overcome by waiting until there are a few parts to read at once.
As a writer, I think it's important that *something* happens in every part. Feedback isn't everything (although it is wonderful!) but it's easier giving FDK if there is something to actually comment on.
Corrina.
