You are going to hate me for saying this, but this is a prime example why I preach, buy from a dealer. They would have set the first one up properly and you would not have needed a second one. This is not a Toro problem, and blaming them is wrong. The second one probably just needs a little check over to run right. The only thing a can tell you is to bite the bullet and if you don't feel it is running correctly, take it to a dealer and have him check it over. Depending on the dealer and what he finds, you may have to pay a little to have this problem solved.