As a new installer I would like to have some experienced installers help me understand the advantages of going with valves closer to the zone off a lateral vs. a manifold system. I like the idea of a manifold setup but I haven't seen one that was easy to work on? The valve located off a lateral near the zone it controls is nice but they get lost easy after some years. I could see manifolds causing a bunch of pipe in the same trench.. seems hard for repairs down the rd. Talk to me... or argue. I expect and enjoy both.