Hiya hun,
i think you should go for the 460!! i had my ba last week.. am 5’3m, size 8-10 and was a 34c… i was mortified about the idea of waking up and having these huge footballs on my chest and thought i was making a mistake by having the 460s cos when i tried them on they looked hugeeeee!
when it come down 2 it i had them because mr singh said 410’s wouldnt fill all the loose skin i had and in all honestly if i had chosen smaller implants i would be so so gutted right now cos even these ones dont look all that big (they look so different when they are actually in compared 2 what they look like when you are trying them on)
im currently wearing a f sports bra but they dont look anywhere near that big id say they look about a dd/e if that, wish they were bigger!! hope this helps x