Over the last couple of weeks I have had trouble with my boom sprayer calibration. I have timed and caught the nozzle output multiple times and all nozzle come out to be very close. Figured I would try the spray 1000 sqft and see how much I put out. When figureing your width I assume you measure from outside nozzle to outside nozzle and not your total spray width. That way you allow for you over lap on the way back.(all inside nozzles overlap). So your boom width might be 7 feet but your actual spray width is 8 ft. Correct???