Other factors for good poop:
- Get enough exercise!
- Don't drink and eat at the same time!
- Drink enough water, and only between meals. (at least a 30min gap)
- Don't over eat.
- Don't under eat.
- Try not combining heavy starches with fats (causes problems for some).
Personally, the amount of fiber I ingest certainly affects the composition, but it doesn't affect regularity.