Thanks for all the replies and questions.
gammaxy questions:
The USB charger port I'm using is from EA Manufacturing. It's available from many sources, here is one link:
http://www.mypilotstore.com/mypilotstore/sep/10030It's connected to the battery with a 2 amp fuse (no switch), so it's powered even if the master switch isn't on. That fuse also supplies power to the MGL EFIS 'keep alive' circuit.
Here is a link to my XENOS panel:
https://flic.kr/p/9m5M8X I think the biggest difference is that I used switches that included circuit breakers on my OneX. Otherwise I would have to add the lower extension the OneX panel.
Another difference is that I've not added instruments that I NEVER look at. On the XENOS panel I have a backup airspeed indicator, turn coordinator and compass. I've never even glanced at them, other than to say to a passenger "you can ignore that one, I use the number displayed over here". If I ever lose the EFIS in the OneX I'll rely on looking outside and experience.
I also moved the fresh air vent off the panel to that custom built box on the right fuselage. I may regret that, but I hope not.
The OneX does not have a fuel site tube, while the XENOS does. In the OneX I can easily see the lower portion of the fuel tank, which I can't see in the XENOS with it's lowered panel extension. If you can't see the tank the fuel site tube brings great piece of mind and in that case I would recommend it.
David's question:
I used the Brother P-Touch with the 18mm white on clear tape cartridge for both my OneX and XENOS. I've been flying the XENOS for over 3 years and still think the panel looks very clean. ( And the labels are relatively cheap! )
and Daricks question:
I used 'Model Airplane Color Design' (odd name isn't it) from
http://www.airplanecolor.com. They provide a version specific to Sonex aircraft. Not too expensive and a great way to visualize your paint scheme. You can actually 'fly' around a rendering of the aircraft.
-- Michael