Ask him if he went to a dealership, to buy a new pickup truck, and ordered one with a V-8 and went back a few days later to take delivery and the salesman decided to order it with a 6 cylinder, because he thought it would get better milage, if he would accept it.

Go to another proshop and get your bow. This guy took it upon himself to decide for you. It isn't what you wanted so go somewhere else and get it.