Dude I hate it when people say that servo is bad. I will say it's not the best seeing as how it will not turn the tires stock. Most of the problem is the stock bellcranks not having any help turning. Ball bearings take care of that. Also the stock servo saver is a huge problem with there being huge steering problems. I got ball bearings $10.00, Servo saver $5.00 and all of my slop is gone. I also got a receiver hump pack for it and I can now turn those big tires on carpet no problems. The biggest complaint the Sf-2 servo proposes is that it is a high torque servo with plastic insides. Replacing it is optioinal but it might be wise. Sooner or later the plastic gears will strip.