Hopefully some of you SPS experts can help - I have a cake due next weekend and the size has just been changed from a 14-10-6 to a 14-12-9-6. I just received my order w/ the SPS plates. I know I can get away with a 9" tier on an 8" plate, but can I use a 10" plate on a 12" tier? I'm hoping this would work. I really don't want to pay $8 in shipping for a $4 plate!

Since I'm assuming that each cake tier will be on its own cake board prior to being placed on the SPS plate, the 10" SPS plate will be fine under the 12" cake. If you are icing in buttercream you might want to put sprinkles or something under the two inch area that wll not be on the SPS plate to minimize sticking.

ditto pp

It would be fine since the cake is on an appropriate size cake board.

Phew! Excellent - thanks all so much! The 12" cake will be on a 12" board.