Well I just did a test flight with two batterys attached to the AXE to see how she would handle. IT WAS BETTER! I couldnt belive it, the AXE flew better with the extra weight. I had to add a flew clicks of right cyclic because it wanted to drift left for somereaon but that was all. It flew so much better in fact that I decided to attemt nose in hovering in my garage, somthing I hadnt done before, it was fine. I cant wait until I get that adapter now so I can see what kind of flight time I get from two packs.