Thank you for the explanation.About 2/3rds of the folks at my flying field fly large gas engines and they mostly reciprocated what you said. Good information, and also avoids the extra battery weight and additional charge jack, so I suppose that is the way I will go. I still hope someone might pop in with one running in this same plane to let me know how they view its performance. I expect that it should be almost as good as the FS 70 currently in the plane.