great i just finished puttin the ca hinges in mine yesterday . i will keep eye on em tho. i also have a ys63 but did a few mods like am going pullpull on elev and rudder. and i carved a notch out of inboard area of both elev halves to allow for more throw in the rudder.... . am using high torque servos all around also...not sure why i did all this as i am not much of a 3D pilot....but i just couldn't help myself...