Unless one has absolute confidence in the integrity of the seller, it's better to simply tack the 3.5% fee onto the total, make seller whole, and consider the fee as transaction insurance.
I agree with Ted B. But the seller is not the only problem. What happens if the package is lost in shipping? Or damaged? Or how about a car accident which hospitalizes the seller or worse. I'm glad to pay with PP F&F Just send me the item and I will send you the $$$ when the item arrives. A seller who insists on F&F is not one I will deal with. I'm surprised anyone does.

