Haha, I love the lateral thinking, Jeremy
As you're a man wot knows about elektrizity, do you think 20 AWG is not 'man enough' for a 2m run? Would 18 be good, as I have quite a lot of that
Plugged into my Charge4 permanently will be my PAW with Pi3B+ and an iPad Mini 4. Occasionally will be an iPhone getting charged up etc but I expect normally there will be a maximum of 3 USB ports used at a time. I think the Pi3B+ will be using a good deal of its allowance of 2.4A per port and I expect the iPad Mini will be using a couple of amps if the screen is bright. That still gives me about 4-4.5A to use on phone charging etc, so I think my power plan should be okay for my PAW.