Summit is so cool with returns that when in doubt I buy all that might fit of a certain item and ship back the others and keep the best one.
Trim rings are lightweight (cheap to ship back) next time buy all the 14 inch rings-one of each-and then keep the best one and exchange 3 for the same ones and get credit for the others.
Tip--best to use a credit card that just started the new billing month, this way you have time for the credit to appear and you need not come up with all that extra cash.