Which champ are you using your SoP 6-star sig stones on?
*if you're TB and reached milestones 9, 10, or 11?
My 6* R3 Elsa will be getting most, if not all of them. She's my top champ, which will help my prestige a little bit, plus I really enjoy her so why not. I don't have anyone better to use them on anyway and I'm tired of waiting for a high prestige 6* champ, let alone duping them lol