Bella was FF from day 2 as I didnt even get any milk - no colstrum no nothing so I had no choice! Bella is a healthy and happy and alert baby girl! I have had my issues with FF'ing (my own emotional issues) but Bella has had no ill efectd from Formula and she is in the 97th percetile for all her stats - she is off the charts for her height.
If you want to FF from birth - then thats what you do! We all have to do whats best for us and our bubs!