Thought i woudl update this. I got Alex weighed today and he's lost weight and would you believe the nurse doing it thought it could be because she is using new scales.

Alex now weighs 12.260kilos and is 82cm long.
I think he's lost weight because since then he has started to walk and he's on the go all day and also he's not on formula any more. So he's gone from being over the top line to being under it now