what do you think is realistic? My sales copy writer thinks that 3% is more likely, in fact our written agreement says I get a refund if it doesnt convert at atleast 1% with a $27 price point.
If you pay him the money and it's in his account you will NEVER get a refund from him. Your written agreement won't matter one bit unless you use an escrow service that holds the money until the conversion rate is discovered or something - and he'd be pretty dumb to agree to that.
You'd have to sue him and that would be way more hassle then it's ever worth for the amount your talking.