well My 3rd Jart took to the air and even suprised me with it performance ,with the thicker section I used for the lighter lift onmy inland slope its shouldnt be as quick as it is . The rudder works and is useful in flat turns but it doesnt have the power to hold knife edge flight it works ok for spinning as well . However I dont know if the extra effort to set a rudder up is really worth the time possible the only way to have a really powerful effect would be a full flying fin hmmmm now there's an Idea . I also maiden my EBaY Passer Thermo and it just awesome addition to the light and I do mean light air machines it was flying when a friends Weasel was struggling
SteveW