I have a funtana 40 with a saito 72. It calls for a .70. I figured why not shred the envelope. It hovers at 1/4th throttle on 0% nitro. It weighs 7lbs because of all the expert strengthening mods I did to it. The best 3d bird ever ever (twist close second). It perform all the wild 3d stuff(inverted flying, rolls, hammerheads, and snap rolls)