Ground loop=Plane would not go strait down runway( kept spinning around in circles...Pavement or packed dirt and you won't have this problem)..Carefull with the rudder throw, set to the plans it doesn't take much...I am using a OLD futaba attack 4 channel with 2 hs-81s and a hs-55 on throttle....Oh, and a standard size nicad stuffed under the tank as far forward as possible....needed it there to balances with the .061....It is a great football field flyer,thats what I would call it...Looks are deceiving, this little plane WILL move out at full throttle...Only needed for launch then 1/3 was more than plenty with a master airscrew 6/3...loops, barrel rolls,spins, all the 3 channel stuff...

This was my second plane after relearning to fly on an electric, it was still a hand full the first time..
IMHO it would be best to get help if possible the first few flights..
hope this helps,
Aaron