The amount of slope in your zone can impact the amount of water lost due to run-off. If not absorbed fast enough, water applied on a slope will flow downhill. this will cause too much water at the bottom of a hill and too little at the top.
To solve this issue, estimate the amount of slope on the steepest section of this zone. Based on your slope, B-hyve will break up your run-time into 2 or more cycles. This will ensure water has time to enter the soil with minimal runoff.