Currently when one purchases an Amazon eGift card on Pepper they give you 4x (4%) cashback in form of Pepper coins — which can be used to redeem for more eGift cards on Pepper. If one uses an ABG to pay for this eGift card they get an additional 4x MR. If one values Amex MR at 1 CPP this means it is an additional 4% CB. This results in a guaranteed 8% CB.
But Pepper has lately been offering 10x boosts on many gift cards such as Amazon, Walmart, Sam’s Club, etc.