Hi guys I'm having problems keeping boom pressure after the sectional control after coming to the head lands. I have the right nozzles and when I get my speed up the rate holds fine. I'm losing both pump and boom pressure at times. Have raven rate control. Only issue is when in auto at the headlands when the booms shut off. To get them started again I go into manual and bump up the increase until the boom and pump pressure are up then I switch it back to auto and it seems fine.... any help would be awesome. I'm sraying 6 g.p.a.