I agree. I have a Pixhawk 3 Pro which is compatible with the Drotek power module. There are no Vcc issues on that board with this power module even in Auto missions. I am just going to switch over to that. The reason I was not using that was because some time ago there were some bootloader issues with Ardupilot. This is why I was stuck on 4.0.5. Those issues are fixed now so I’ll be able to use the latest stable.