Yeah, I'm running a 700 for guidance and 20/20 for seed and delta Force and Integra for fertilizer. Got to either setup my UD+ or 600 to unfold the planter itself. I do have a harness for that. Would that be needed to operate the up /down function every time I turn around or could I just use my hydraulics without needing to touch the screen? Sounds like I'll need the 4 screens. Yikes!