I have a outrage xp25 i use in my big lama, the stock battery is to weak to pull it out of trouble if ya get into it, the outrage will add alot of power and speed to it. I love my big lama i fly it 7-14 times a week or more, i have spent very little on repairs to it, the only thing i dont like about the copter is the body, you have to take the blades off to get the body off, so i modded mine with a HBking 2 canopy lol, makes repairs and tweaks much much easier.