I think you got an outstanding deal. The sub soiler has a shear bolt, the TSC sub soliers do not, or the ones I have looked at didn't have one. A sub soiler will find things under ground that will stop, and stand a tractor up. Not a good feeling to be going along and all of a sudden be looking at the sky. I don't think a lot of people using a sub soiler understand this. You may also have to purchase a shorter top link to obtain maximum use. Now TSC would be the place to buy that. If you lived closer I would give you the money paid for the sub soiler, you would then only be out of the money spent on food and gas for a "Day Trip Outing" with the family.