I have solved my problem in a needlessly expensive and complex fashion (I have time on my hands). I'm getting those dyna-snap magnetic connectors so I can remove the bulky switch from the set up when I'm not doing multi-day rides. I just need to bodge a velcro strap for the switch to replace the zip ties. And to make it more complex and time consuming I might try and get a new 3d printed case for the switch.
I have solved my problem in a needlessly expensive and complex fashion (I have time on my hands). I'm getting those dyna-snap magnetic connectors so I can remove the bulky switch from the set up when I'm not doing multi-day rides. I just need to bodge a velcro strap for the switch to replace the zip ties. And to make it more complex and time consuming I might try and get a new 3d printed case for the switch.