http://www.cichlid-forum.com/
True, with very careful control, you can do a fishy cycle. The issue will always revolve around, how much stress is acceptable and when is the onset of it.
I am of the school that any levels of ammonia and nitrites can cause gill damage, which in turn may affect the health of the fish and affect the future lifespan of them. It is very specific to species and so many other factors, and the debates rage on here from time to time on what is and isn't acceptable.
Just my 2 cents.