I received a Funtana 40 for Xmas. I am worried about my engine options. My choices are O.S. 46la or 61fx. After reading on RCU it seems that one is to weak and the other might be to heavy. I think it is important to let yall know I am not super interested in 3d at the moment. I am leaning towards th 61fx but am worried that it will fly bad due to the weight. 3d aside will the 61 or 46 make this plane more enjoyable to fly. Thanks Patrick