About the Ukraine trial: The plot sign marks the middle of the planter pass. There were two Kinze 16/31 planters used for this trial. One was equipped with SureStop® electric clutches, STMM, plus it used the original Kinze airbag system called PDP and Kinze 4000 series seed meters. The second planter was retrofitted with Kinze 4000 series meters, SureDrive® electric drives and SureForce® bidirectional controls. Four passes made by each planter were used for the trial in a 12211221 planter pass scheme.