I was still missing the SR card so I thought I will give the old combo a try. I fed the squirrel with 10x R Gacha Ticket + 7x Glasses and got SR + N cards in the first try. Keep in mind that it has very high chance for SR and N but is not guaranteed to do so. In the previous Kurito card set I got SR on my 3rd or 4th try with this combo. Maybe someone will find this info useful.