So then I should be safe using ~800mAh 2S LiPo for running and can then plug in my big 5,000 mAh 2S LiPo into a Y harness for start up and shut down on a MW44 gold Kero start.

I don't care if I have to charge often. I would rather be light to fly better.

Me thinks me has a plan starting to come together.......