I am very interested in this plane, I like my Superstar ep but really want the bigger plane with the brushless motor. My question is a about the batteries???? I want to go with LiPo. Are there two or one??? Im confused, if using one battery how do you custmize the connections form the speed controller? also what is the weight difference between the two standard batteries and the two Lipo batteries? What about the diffenece in weight from the two stock batteries to the one Lipo???? Appreciate any feedback