This is going to be about a full Feruchemist I was wondering if it would be possible for a fullborn to tap any metal and at the same time fill Nicrosil (investiture) and end up with having however much investiture was in the other metalmind. Or if when one fills Nicrosil they would no longer have any access to Feruchemy at all and if you could use Nicosil to fill other metalminds.