A method and an apparatus to control an equalizer. A seat member moveably attaches to the frame, with a recessed support for receiving and supporting a child. A tension meter is associated with each of the traction or lines with the tension meter being connected to a readout which indicates the tension or traction force being imposed in the traction line. Still further provided by the invention are methods for producing soybean plants by crossing the soybean variety 01046250 with itself or another soybean variety and plants produced by such methods. The time reference is then used by each element to adjust an internal clock of the element.