hey we have one and we put a saito 50 in it.set it up full tail heavy.our throws are beyond to far.. rud 2 1/4 in exp 65% elev 1 3/4 45% ail. 7/8 in exp 30% pretty tough to hover but it does it . flatest flat spins youll ever see we had it gaining altitude back up in the inverted flat spin.be carefull landing with such big throws it will snap out. the rates are very wicked and take some getting used to... hope this helps