Klein made QSO #1 at DXpedition University. He's shown running them on 24 MHz. Just above his hands, you can see the antenna/rig patch panel. Team Vertical uses this on all operations to keep things tidy, as well as make antenna changes easier and more foolproof.
The panel is made from non-conducting plexiglass. All antennas and radios are fed into the back of the panel. Then short jumpers are used to connect rig to antenna on the front side of the panel.