I read everyone's comments with great interest.I am about to purchase my first 3d..I was leaning toward the 60 size ucando..but I saw the hanger 9 twist..in any event I have a nib fs surpass 91..will that engine allow me to hover the ucando????for that matter will that 90 four stroke hover a funtana 9o??I really want to use my surpass 91 but I am concerned that although its brand new is it enough to really fly the ucando 60..??help!