Cool Chris! I have been using a thumb screw from another old camera mount and like you, used a few nuts to step it out… never even thought of the gopro screws… of which I have loads! Top tip! 👌🏻
I am looking at a way to try and mount my IC-705 into my car and I have not found one viable way as of yet. I am concerned about vibration more than anything. I can use my phone to control the radio via repeater book app. Nice idea Chris - G0LQP 73