Sho 'nuff, my Turnigy 1000's just arrived (first one already on the charger). With two of these bad boys, I should be able to fly as long as I want. I'm only worried about the weight at 94g vs stock I think is about 65g? Maybe I could cut the padding off the bigger packs to save a few g, then start stripping stuff off the heli, like the skids and run with just training gear directly attached?