im 5ft 7 & and 63kg too. Went to my first consultation today and tried on some implants. He gave me 325cc and a 350cc to try and I thought they looked enormous !! Asked to try 300cc felt more comfortable and thought they look good. Though now looking back at the pics I took, they look very very big from the front. I don’t know if i could go even smaller to a 275cc…. but then I worry im straying from what was recommended.