DS was on C&G which was fine until we had to put him on gaviscon then he had major constipation.
IME Aptamil was the best for him. But my others have all thrived on different formulas so that's not to say that Aptamil will be the best for your dd. SMA was never good for any of them though.
I agree with the not needing to move to follow on though. I do know someone who did though - purely as follow on is often on offer and you can collect reward points on it as it's not subject to the same laws!