I've never met a
Candice. A couple of
Candace people, who went by
Candace and pronounced it KANdis. And I was at school with a
Candy Mercia Anne Lastname who was interrogated by every new teacher: WHAT was her name? Was THAT her name? Was she sure? Building up to a crescendo: "
Ask your mother!" Who gave the same answer, year in, year out.
I deplore
Candy and would therefore avoid the name, just in case. But
Candace would be fine in the mn slot.