With the Scorpion HK-4025-740 and a 2100HS I get 4min of 3D flight. I can charge the 12S battery in about 25min, since my charger is limited to 6S. If I got another charger I could charge it in about 11min. Yeah A123's can do 3D flight with a little collective management and once they are warm enough. Here is a video I did awhile ago and I used 10S and a Tonic-X motor. http://www.youtube.com/watch?v=hIjnuUCAsjs I can do a lot more with it now, but I just haven't had anyone film me.