I am looking to purchase a TC33D and need some information on the SuperSteer option. I will be purchasing the 7308 loader with the tractor and I have concerns about long-term durability with regard to the SuperSteer. If anyone has a TC33D with the loader and SuperSteer, any feedback with regard to durability and overall performance will be appreciated. I also understand that when the tractor is purchased with SuperSteer, the Sensitrak system comes with it. More moving parts to be concerned about?? Thanks.