I am new the tractor world and just bought the L2501, so far really enjoy it. It has had no issues accomplishing any tasks I have thrown at it. I heard through the dealer, like many of you have stated that the only difference between the 25, 33, and 39HP is the actual settings. Has anyone adjust the their throttle screws and what what results have you received? It would be great if someone could post a how to video on this.