I think the hard part of cable management is not to make it so neat and tidy that it makes it next to impossible to change things out. For example, when I bought my first apex controller I buried all of the probe cables and zip-tied everything in, when it came time to replace them it was a nightmare. So when it comes to maintenance-type items, I put those wires in a cable tray, I also just swap both return pumps for maintenance instead of cleaning and putting them back so I keep those wires easily removable. A good cable raceway is where it's at IMO