What happens with rates if my drill is in 2 zones at once and I don’t have VR sectional control?

The application rate is based on where your tractor GPS antenna is located. So, if the antenna is in Zone 4 the drill will apply as per Zone 4 prescription regardless if the wing of the drill is in a different zone. As the equipment manufacturers make further technology advancements, they will be able to vary each section as per the prescription. Some already can.