First of all, Bad idea.
HBD FA is NOT the same thing as me selling a toaster on E-bay! It is, in fact, completely different. FA is NOT an auction. For instant, the author of this horrible thread, seem not to have a clue about buyers and sellers. The buyers are the owners of the franchise. We can clear that up now. The sellers are not somebody hoping they can get $50 bucks for their used vacuum. The sellers are the FA themselves. Sellers want to get the most money possible and buyers want to spend the lease possible if I am correct.
So, as a seller, why would I not want to get overpaid? Getting overpaid is good for the seller.
Second, this is a horrible plan.