I have two chase credit cards with over $300 worth of points and will open another Chase card next month, the Chase Sapphire Reserve (CSR). I am wondering if my existing Chase points will get the 3x multiplier from the CSR card when I eventually open that card. It may be that I only get the benefit of the 3x multiplier on points earned through the CSR card but wanted to be sure before redeeming my existing points. If they do get the benefit of the 3 multiplier I will hold on to them. Does anyone know how this rule works for Chase rewards points?
Bonus question: Can I open the Chase Sapphire Preferred (CSP), then product change to the CSR and get the 3x multiplier on the points earned from the CSP?