It sounds like we need a low profile, high power disconnect with a secondary retention device to prevent it from falling out during flight.

Despite my comment about requiring an external device, I do like to be safe. I'm just not interested in a requirement that forces me to add a failure point. The APP and the Deans plug seem to work, but neither is ideal.

I don't know enough about the Emcotec plug. I've seen one used at the field and it seems nice, but I think electronics is a black art and I have a hard time trusting something like that.