Its currently set for 30 in rows so I believe that's how it has to be.
This is our only large tractor so it does everything from planting, spraying to working the fields.
All the weights are off of it now as we have been fabbing up the sprayers to sit on the back off the three point rather than on the front.
The disc is on it now as we are doing wheat and going to try to get in some soys after the wheat. In my little test, it will need no weights for that.